Last data update: Jul 18, 2025. (Total: 49602 publications since 2009)
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Assessing the Effectiveness of Data-to-Care Strategies for Improving HIV Care Outcomes: A Systematic Review
Roberts KT , Mullins M , Higa DH , Koenig LJ , Mallett M , Wichser M , Denard CL , Gunn J , Nji MAM , Nguyen B , Mitchell J , Pontes M , Underwood M , Sipe TA . AIDS Behav 2025 ![]() Data-to-Care (D2C) is a strategy that uses HIV surveillance data or other data sources to identify out-of-care (OOC) persons with HIV (PWH) and link or re-engage them in care to improve viral suppression (VS). While some evidence suggests D2C is effective, no comprehensive systematic review has been published. This review aims to determine the effectiveness of D2C. A systematic search in five databases (i.e., MEDLINE, EMBASE, PsycINFO, CINAHL, sociological abstracts) identified 3868 U.S. studies published between January 2009 and January 2021 that described D2C interventions and measured HIV care outcomes. Two reviewers screened titles/abstracts, reviewed full reports for eligibility, and abstracted data. Risk of bias was assessed using the Mixed Methods Appraisal Tool, and included studies were synthesized quantitatively and qualitatively (Protocol registered on PROSPERO ID = CRD42020173095). Thirty-four studies with 30 unique interventions were identified. Two different meta-analyses, each with six interventions, found that D2C approached significance in improving engagement in care (Relative Risk (RR) 95% CI 1.18 [0.99 to 1.41]) and VS (RR 95% CI 1.44 [0.99 to 2.09]). Studies that could not be incorporated into the meta-analyses, also showed improvements in engagement in care (median percent [IQI]: 63% [45% to 81%], 18 interventions) and VS (median percent [IQI]: 39% [25% to 57%], 14 interventions). Overall, this systematic review suggests that D2C may enhance HIV care outcomes, emphasizing the need for effective strategies to identify and engage OOC persons in care. |
Using updated clinical recommendations to support contraceptive decision-making: U.S. Medical Eligibility Criteria for Contraceptive Use, 2024
Curtis KM , Nguyen AT , Tepper NK , Whiteman MK . Contraception 2025 111015 ![]() OBJECTIVES: In August 2024, the U.S. Centers for Disease Control and Prevention updated U.S. Medical Eligibility Criteria for Contraceptive Use (U.S. MEC), which provides recommendations for safe use of contraception for women with certain characteristics and medical conditions. This paper provides a summary of the evidence and context for new and updated U.S. MEC recommendations. STUDY DESIGN: The 2024 U.S. MEC was updated through a rigorous, multi-year process of determining priorities that would have high impact on clinical care, conducting systematic reviews of the evidence, and considering perspectives of health care providers and patients on how the evidence could best support updated recommendations. RESULTS: New U.S. MEC recommendations were added for chronic kidney disease, specifically for three subconditions: current nephrotic syndrome, hemodialysis, and peritoneal dialysis. Revisions were made to several existing recommendations, such as those for sickle cell disease, anticoagulant therapy use, various thrombogenic conditions, cirrhosis, liver tumors, solid organ transplantation, and intrauterine device placement in the postpartum period. Updated recommendations include those that reflect decreased safety concerns for some medical conditions (e.g., progestin-only contraception and some liver diseases) and increased safety concerns for others (e.g., combined hormonal contraception and depot medroxyprogesterone acetate for women with sickle cell disease). Recommendations for new contraceptive methods were added. CONCLUSIONS: Evidence-based clinical guidelines can be used by health care providers to support patient-centered contraceptive counseling and services and remove unnecessary barriers to accessing and using contraception. Provider tools including a mobile app are available to help with implementation of the updated recommendations. IMPLICATIONS: Keeping U.S. MEC up-to-date is critical for supporting contraceptive decision-making and improving access to contraception and reproductive health care. This includes new research to address current evidence gaps, rigorous methodology for continuous evidence identification and synthesis, state-of-the-art methods for guideline development, and a broad range of dissemination and implementation strategies. |
Development and validation of a novel clinical risk score to predict hypoxaemia in children with pneumonia using the WHO PREPARE dataset
Tan R , Chandna A , Colbourn T , Hooli S , King C , Lufesi N , McCollum ED , Mwansambo C , Mathew JL , Cutland CL , Madhi SA , Nunes M , Basnet S , Strand TA , O'Grady KF , Gessner B , Addo-Yobo E , Chisaka N , Hibberd P , Jeena PM , Lozano JM , MaLeod WB , Patel A , Thea DM , Nguyen NTV , Lucero M , Akram Uz Zaman SM , Bhatnagar S , Wadhwa N , Lodha R , Aneja S , Santosham M , Awasthi S , Bavdekar A , Chou M , Nymadawa P , Pape JW , Paranhos-Baccala G , Picot VS , Rakoto-Andrianarivelo M , Rouzier V , Russomando G , Sylla M , Vanhems P , Wang J , Libster R , Clara AW , Beynon F , Levine G , Rees CA , Neuman MI , Qazi S , Nisar YB . BMJ Glob Health 2025 10 (7) BACKGROUND: Hypoxaemia predicts mortality at all levels of care, and appropriate management can reduce preventable deaths. However, pulse oximetry and oxygen therapy remain inaccessible in many primary care health facilities. We aimed to develop and validate a simple risk score comprising commonly evaluated clinical features to predict hypoxaemia in 2-59-month-old children with pneumonia. METHODS: Data from seven studies conducted in five countries from the Pneumonia Research Partnership to Assess WHO Recommendations (PREPARE) dataset were included. Readily available clinical features and demographic variables were used to develop a multivariable logistic regression model to predict hypoxemia (oxygen saturation <90%) at presentation to care. The adjusted log coefficients were transformed to derive the PREPARE hypoxemia risk score and its diagnostic value was assessed in a held-out, temporal validation dataset. The model and risk score were analysed by evaluating the area under the receiver operating characteristic curve (AUC), sensitivity and specificity. RESULTS: We included 14 509 children in the analysis; 9.8% (n=2515) were hypoxemic at presentation. The multivariable regression model to predict hypoxemia included age, sex, respiratory distress (nasal flaring, grunting and/or head nodding), lower chest indrawing, respiratory rate, body temperature and weight-for-age z-score. The model showed fair discrimination (AUC 0.70, 95% CI 0.67 to 0.73) and calibration in the validation dataset. The simplified PREPARE hypoxaemia risk score includes five variables: age, respiratory distress, lower chest indrawing, respiratory rate and weight-for-age z-score. CONCLUSION: The PREPARE hypoxemia risk score, comprising five easily available characteristics, has the potential to be used to identify hypoxemia in children with pneumonia with a fair degree of certainty for use in health facilities without pulse oximetry. Its implementation would require careful consideration to limit the burden of inappropriate referrals on patients and the health system. Further external validation in community settings in low- and middle-income countries is required. |
Safety of hormonal contraception among women with liver disease: an updated systematic review
Kapp N , Tepper NK , Nguyen AT , Garbarino S , Kortsmit K , Curtis KM , Whiteman MK . Contraception 2025 111012 OBJECTIVE: We sought to assess whether, among women with liver disease, there is an increased risk of adverse health effects with use of hormonal contraception (HC). METHODS: We conducted a systematic review of six databases from database inception through December 13, 2022. We searched for articles that examined changes in liver lesions and acute and chronic liver disease with use of HC or after discontinuation of HC. We assessed risk of bias for each study and certainty of evidence for all outcomes. RESULTS: Thirteen articles met inclusion criteria, one with low risk of bias and the others with high risk of bias: three studies (four articles) were of women with focal nodular hyperplasia (FNH), five studies were of hepatocellular adenoma (HCA) and four studies were of acute or chronic hepatitis. The size and/or number of FNH lesions were generally not influenced by HC use. HCA progression was generally higher among current combined oral contraception (COC) users than those who discontinued, and lesions were stable or regressed in most women who discontinued COC or used progestin-only contraception. Studies found that viral hepatitis generally did not progress or increase in severity with use of COC. CONCLUSION: Overall, a limited body of evidence suggested changes in FNH lesions were independent of hormonal contraceptive use. Estrogen-containing contraceptive method use was associated with HCA lesion progression; lesions generally remained stable with progestin-only contraceptive use. COC use did not increase progression or severity of disease among those with viral hepatitis. The certainty of evidence for all outcomes was very low. IMPLICATIONS: Liver conditions such as liver lesions, viral hepatitis, and cirrhosis are increasingly common in women of reproductive age. Information in this review can be used by health care providers when counseling women with liver disease about safe use of contraception. |
Global update on the susceptibilities of influenza viruses to neuraminidase inhibitors and the cap-dependent endonuclease inhibitor baloxavir, 2020-2023
Hussain S , Meijer A , Govorkova EA , Dapat C , Gubareva LV , Barr I , Brown SK , Daniels RS , Fujisaki S , Galiano M , Huang W , Kondor RJ , Lackenby A , Lewis N , Lo J , Nguyen HT , Patel MC , Pereyaslov D , Rattigan A , Samaan M , Wang D , Webby RJ , Yen HL , Zhang W , Takashita E . Antiviral Res 2025 106217 Antiviral susceptibility of influenza viruses is monitored by the World Health Organization Global Influenza Surveillance and Response System. This study describes a global analysis of the susceptibility of influenza viruses to neuraminidase (NA) inhibitors (NAIs, oseltamivir, zanamivir, peramivir, laninamivir) and the cap-dependent endonuclease inhibitor (CENI, baloxavir) for three periods (May to May for 2020-2021, 2021-2022 and 2022-2023). In particular, global influenza activity declined significantly in 2020-2021 and 2021-2022 when compared to the pre-pandemic period of COVID-19. Combined phenotypic and NA sequence-based analysis revealed that the global frequency of seasonal influenza viruses with reduced or highly reduced inhibition (RI/HRI) by NAIs remained low, 0.09% (2/2224), 0.12% (27/23465) and 0.23% (124/53917) for 2020-2021, 2021-2022 and 2022-2023, respectively. As in previous years, NA-H275Y in A(H1N1)pdm09 viruses was the most frequent substitution causing HRI by oseltamivir and peramivir. Sequence-based analysis of polymerase acidic (PA) protein supplemented with phenotypic testing revealed low global frequencies of seasonal influenza viruses with reduced susceptibility (RS) to baloxavir, 0.07% (1/1376), 0.05% (9/18380) and 0.12% (48/39945) for 2020-2021, 2021-2022 and 2022-2023, respectively; commonly associated substitutions were PA-I38T/M/L. In Japan, the rate was 3.3% (16/488) during 2022-2023, with 11 A(H3N2) viruses having PA-I38T/M substitutions. For zoonotic viruses, 2.7% (3/111) contained substitutions, one each NA-H275Y, NA-S247N and NA-N295S, associated with RI/HRI NAI phenotypes, and none contained PA substitutions associated with RS to baloxavir. In conclusion, the great majority of seasonal and zoonotic influenza viruses remained susceptible to NAIs and CENI baloxavir. |
An Overview of Multistate Outbreak Investigations of Salmonella Infections Linked to Fish and Fishery Products, United States - 2012-2021
Viazis S , Lindsay M , Cripe J , Carran S , Greenlee T , Federman SS , Schwensohn C , Nguyen TA , Parker CC . J Food Prot 2025 100566 Salmonella infections linked to seafood consumption have the potential to cause serious illness, with reported incidence of foodborne illness associated with contaminated seafood increasing in the past decade. While technological advancements over the last decade have made significant progress in the detection, reporting, and determining the source of illness from bacterial pathogens including Salmonella, prevention of these illnesses remains the same, basic sanitation control. We examined data from Salmonella outbreaks linked to fish and fishery products (excluding raw molluscan shellfish) during the period 2012-2021. In that time, there were five confirmed multistate Salmonella outbreaks, including 633 illnesses and 92 hospitalizations associated with fish and fishery products, and four additional multistate outbreaks with 88 illnesses and 12 hospitalizations where fish and fishery products were a suspect vehicle. We summarize common findings and challenges in the traceback investigations related to these outbreaks, particularly considering traceback challenges involving imported seafood, and discuss sanitary practices and regulatory approaches to prevent Salmonella outbreaks linked to fish and fishery products. Some of the most frequent insanitary observations included the safety of the water used in manufacturing food and ice; using water hoses to create overspray that may cross-contaminate food and food contact surfaces in the processing areas; and inadequate cleaning and sanitizing. Environmental contamination (e.g. from bird feces and insects) and improperly sanitized surfaces and cutting tools were also observed in some inspections. Sanitation controls are especially critical for raw ready-to-eat seafood and controls ensuring proper cooking and sanitary conditions and practices after cooking are critical for cooked product. These sanitation controls prevent foodborne outbreaks and recalls, safeguard consumers, and maintain trust in the food supply chain. |
Birth Outcomes Among Women With Syphilis During Pregnancy in Six U.S. States, 2018-2021
Carlson JM , Sancken CL , Nguyen K , Lewis EL , Praag A , Pulliam K , Willabus T , Bakwa ZE , Longcore ND , O'Callaghan KP , Miele K , Fountain A , Tong VT , Woodworth KR . Obstet Gynecol 2025 146 (1) 121-128 OBJECTIVE: To describe the association between syphilis treatment status and adverse pregnancy and neonatal outcomes among pregnancies complicated by syphilis. METHODS: Six jurisdictions that participated in SET-NET (Surveillance for Emerging Threats to Mothers and Babies Network) reported data on women with syphilis during pregnancy and outcomes that occurred during 2018-2021. Frequencies of adverse outcomes were reported by syphilis treatment status during pregnancy as defined by the 2021 Sexually Transmitted Infections Treatment Guidelines (inadequate, adequate, and no treatment). Adjusted risk ratios (aRRs) were modeled for each outcome comparing adequate treatment with no treatment and with inadequate treatment, controlling for the pregnant woman's age at infection, education level, insurance status, reported substance use, number of prenatal visits, and stage of syphilis. RESULTS: As of June 7, 2024, 1,682 singleton pregnancies complicated by syphilis were reported, with more than half of pregnant women adequately treated for syphilis (57.6%). Pregnant women with no or inadequate treatment had higher relative frequencies of adverse outcomes (stillbirth, prematurity, low birth weight [LBW], and neonatal intensive care unit [NICU] admission) than those with adequate treatment. The aRRs for stillbirth (9.9% vs 1.4%, aRR 3.72, 95% CI, 1.73-8.03), LBW (30.1% vs 9.9%, aRR 1.51, 95% CI, 1.07-2.14), and NICU admission (66.7% vs 27.0%, aRR 1.60, 95% CI, 1.28-1.98) were higher in pregnant women with no treatment compared with those with adequate treatment. Inadequate treatment was associated with LBW and NICU admission (24.9% vs 9.9%, aRR 1.81, 95% CI, 1.29-2.52; and 57.2% vs 27.0%, aRR 1.61, 95% CI, 1.31-1.99, respectively) compared with adequate treatment. CONCLUSION: The high relative frequencies of adverse pregnancy and neonatal outcomes associated with inadequately treated or untreated syphilis during pregnancy reinforce the importance of adequate treatment in mitigating the effects of syphilitic infection. Increased attention and systematic strategies are needed to address gaps in screening and treatment before and during pregnancy to reduce adverse pregnancy and neonatal outcomes. |
Smooth Muscle Relaxants for Intrauterine Device Placement: A Systematic Review
Snyder EM , Krishna G , Zapata LB , Nguyen AT , Whiteman MK , Curtis KM . Contraception 2025 110971 OBJECTIVES: To systematically review evidence on whether medications with smooth muscle relaxant properties improve patient and provider outcomes for intrauterine device (IUD) placement. STUDY DESIGN: We searched multiple databases through August 2022 for randomized clinical trials assessing smooth muscle relaxants for IUD placement. Primary outcomes were pain experienced with IUD placement, provider ease of placement, need for adjunctive placement measures, placement success, patient satisfaction with procedure, medication side effects occurring before clinic discharge, and adverse events occurring before clinic discharge. We extracted data from included articles, assessed risk of bias for each trial, narratively summarized results, and determined certainty of evidence for all outcomes. RESULTS: Five trials met inclusion criteria; four trials had low risk of bias and one had moderate risk. Two trials of topical nitroprusside gel or nitroglycerin ointment found no differences in patient pain, provider ease of placement, patient satisfaction, placement success, side effects, or adverse events. One trial suggested that drotaverine plus mefenamic acid reduced patient pain but did not improve placement success. Two trials suggested that isonicotinic acid hydrazide reduced patient pain, improved provider ease of placement and patient satisfaction, reduced need for analgesia and for cervical dilation (in one trial) and did not increase side effects; neither trial reported improved placement success. CONCLUSIONS: Evidence on smooth muscle relaxants for IUD placement remains sparse with inconsistent findings across specific medications. Certainty of evidence for all outcomes was low for topical nitroprusside gel and nitroglycerin ointment, very low for drotaverine plus mefenamic acid, and mostly high for isonicotinic acid hydrazide. IMPLICATIONS: Before IUD placement, healthcare providers can counsel patients on the potential for pain during placement and options for pain management. However, more evidence is needed on specific smooth muscle relaxants to determine their effectiveness as an intervention for IUD placement. |
Thrombosis risk with use of hormonal contraception among women with thrombophilia: an updated systematic review
Tepper NK , Nguyen AT , Curtis KM , Baumhart C , Schieve L , Whiteman MK . Contraception 2025 110943 ![]() OBJECTIVES: Thrombophilia is associated with an elevated risk of thrombosis, which may be further elevated with use of hormonal contraception. Our objective was to update a previously published systematic review on thrombosis risk with use of hormonal contraception among women with thrombophilia. STUDY DESIGN: We conducted a systematic review of five databases from database inception through December 8, 2022. We searched for articles that examined risk of venous thromboembolism (VTE) or arterial thromboembolism (ATE) in women with thrombophilia using hormonal contraception compared with women using non-hormonal or no contraception. We assessed risk of bias for each study and certainty of evidence for all outcomes. RESULTS: Eighteen articles met inclusion criteria; four had moderate risk of bias and 14 had high risk of bias. Odds of VTE in women with factor V Leiden (FVL) mutation or prothrombin (PT) gene mutation were elevated in combined oral contraception (COC) users vs non-users. Odds of VTE were elevated in COC users with FVL mutation, PT gene mutation, both FVL and PT mutations, antithrombin (AT) deficiency, or protein C deficiency compared with non-users without the mutation. Odds of stroke were elevated in COC users with FVL mutation compared with non-users without the mutation. Evidence was mixed on whether risk was elevated in women with protein S deficiency using COC compared with non-use. One study found elevated odds of VTE in women with FVL mutation but not women with PT gene mutation using progestin-only contraception (POC), compared with non-users without the mutation. CONCLUSIONS: Overall, studies found elevated odds of VTE and ATE in women with thrombophilia using COC compared with non-users without thrombophilia. The certainty of evidence for all outcomes is low. Evidence is also limited by small numbers of women and minimal evidence on use of patch, ring, or POC, and is insufficient to assess differential risk by all thrombophilia types. IMPLICATIONS: Use of estrogen-containing hormonal contraception might further elevate risk of thrombosis among women with thrombophilia. Further study is needed on safety of POC use in women with thrombophilia. |
Patterns of Decline in Measles, Mumps, and Rubella Neutralizing Antibodies and Protection Levels Through 10 Years After a Second and Third Dose of MMR Vaccine
Lutz CS , Nguyen HQ , McClure DL , Masters NB , Chen MH , Colley H , Sowers SB , Crooke SN , Marin M . Open Forum Infect Dis 2025 12 (4) ofaf188 BACKGROUND: In the United States, 2 doses of measles-mumps-rubella (MMR)-containing vaccines are recommended routinely during childhood; a third dose may be given under certain circumstances. We present observed seroprotection rates and estimate long-term dynamics of measles, mumps, and rubella neutralizing antibody (nAb) levels among 2- and 3-dose MMR (MMR2 and MMR3, respectively) vaccinees. METHODS: Persons who received MMR2 at age 4-12 years or MMR3 at age 18-31 years were enrolled in 1994-1995 and 2009-2010, respectively. Per cohort, sera were collected before vaccination (baseline) and at various intervals ranging from 1 month to 10 years postvaccination to assess nAb levels. Annual changes in nAb levels per virus and cohort were estimated through 10 years postvaccination using generalized estimating equations. Models were stratified by baseline nAb levels. RESULTS: Among MMR2 participants (n = 621), 93.7%, 73.4%, and 83.9% had protective nAb levels against measles, mumps, and rubella, respectively, at the 10-year visit; among MMR3 participants (n = 665), 90.5%, 69.1%, and 100% had protective nAb levels, respectively, at the 9-11-year visit. Estimated nAb levels declined annually across both cohorts, all viruses, and baseline nAb strata, though patterns and magnitude varied. More than one-quarter of participants had mumps nAb levels below the presumed seroprotection threshold at the terminal visits. CONCLUSIONS: These findings indicate that even when MMR antibodies wane, protection against disease is largely retained. Waning of mumps antibodies was greater than for measles and rubella in both 2- and 3-dose vaccinees, likely because a greater proportion failed to mount a robust initial response. |
Prevalence and Early Identification of Autism Spectrum Disorder Among Children Aged 4 and 8 Years - Autism and Developmental Disabilities Monitoring Network, 16 Sites, United States, 2022
Shaw KA , Williams S , Patrick ME , Valencia-Prado M , Durkin MS , Howerton EM , Ladd-Acosta CM , Pas ET , Bakian AV , Bartholomew P , Nieves-Muñoz N , Sidwell K , Alford A , Bilder DA , DiRienzo M , Fitzgerald RT , Furnier SM , Hudson AE , Pokoski OM , Shea L , Tinker SC , Warren Z , Zahorodny W , Agosto-Rosa H , Anbar J , Chavez KY , Esler A , Forkner A , Grzybowski A , Agib AH , Hallas L , Lopez M , Magaña S , Nguyen RHN , Parker J , Pierce K , Protho T , Torres H , Vanegas SB , Vehorn A , Zhang M , Andrews J , Greer F , Hall-Lande J , McArthur D , Mitamura M , Montes AJ , Pettygrove S , Shenouda J , Skowyra C , Washington A , Maenner MJ . MMWR Surveill Summ 2025 74 (2) 1-22 ![]() PROBLEM/CONDITION: Autism spectrum disorder (ASD). PERIOD COVERED: 2022. DESCRIPTION OF SYSTEM: The Autism and Developmental Disabilities Monitoring Network is an active surveillance program that estimates prevalence and characteristics of ASD and monitors timing of ASD identification among children aged 4 and 8 years. In 2022, a total of 16 sites (located in Arizona, Arkansas, California, Georgia, Indiana, Maryland, Minnesota, Missouri, New Jersey, Pennsylvania, Puerto Rico, Tennessee, Texas [two sites: Austin and Laredo], Utah, and Wisconsin) conducted surveillance for ASD among children aged 4 and 8 years and suspected ASD among children aged 4 years. Surveillance included children who lived in the surveillance area at any time during 2022. Children were classified as having ASD if they ever received 1) an ASD diagnostic statement in a comprehensive developmental evaluation, 2) autism special education eligibility, or 3) an ASD International Classification of Diseases, Ninth Revision (ICD-9) code in the 299 range or International Classification of Diseases, Tenth Revision (ICD-10) code of F84.0, F84.3, F84.5, F84.8, or F84.9. Children aged 4 years were classified as having suspected ASD if they did not meet the case definition for ASD but had an evaluator's suspicion of ASD documented in a comprehensive developmental evaluation. RESULTS: Among children aged 8 years in 2022, ASD prevalence was 32.2 per 1,000 children (one in 31) across the 16 sites, ranging from 9.7 in Texas (Laredo) to 53.1 in California. The overall observed prevalence estimate was similar to estimates calculated using Bayesian hierarchical and random effects models. ASD was 3.4 times as prevalent among boys (49.2) than girls (14.3). Overall, ASD prevalence was lower among non-Hispanic White (White) children (27.7) than among Asian or Pacific Islander (A/PI) (38.2), American Indian or Alaska Native (AI/AN) (37.5), non-Hispanic Black or African American (Black) (36.6), Hispanic or Latino (Hispanic) (33.0), and multiracial children (31.9). No association was observed between ASD prevalence and neighborhood median household income (MHI) at 11 sites; higher ASD prevalence was associated with lower neighborhood MHI at five sites.Record abstraction was completed for 15 of the 16 sites for 8,613 children aged 8 years who met the ASD case definition. Of these 8,613 children, 68.4% had a documented diagnostic statement of ASD, 67.3% had a documented autism special education eligibility, and 68.9% had a documented ASD ICD-9 or ICD-10 code. All three elements of the ASD case definition were present for 34.6% of children aged 8 years with ASD.Among 5,292 (61.4% of 8,613) children aged 8 years with ASD with information on cognitive ability, 39.6% were classified as having an intellectual disability. Intellectual disability was present among 52.8% of Black, 50.0% of AI/AN, 43.9% of A/PI, 38.8% of Hispanic, 32.7% of White, and 31.2% of multiracial children with ASD. The median age of earliest known ASD diagnosis was 47 months and ranged from 36 months in California to 69.5 months in Texas (Laredo).Cumulative incidence of ASD diagnosis or eligibility by age 48 months was higher among children born in 2018 (aged 4 years in 2022) than children born in 2014 (aged 8 years in 2022) at 13 of the 15 sites that were able to abstract records. Overall cumulative incidence of ASD diagnosis or eligibility by age 48 months was 1.7 times as high among those born in 2018 compared with those born in 2014 and ranged from 1.4 times as high in Arizona and Georgia to 3.1 times as high in Puerto Rico. Among children aged 4 years, for every 10 children meeting the case definition of ASD, one child met the definition of suspected ASD.Children with ASD who were born in 2018 had more evaluations and identification during ages 0-4 years than children with ASD who were born in 2014 during the 0-4 years age window, with an interruption in the pattern in early 2020 coinciding with onset of the COVID-19 pandemic.Overall, 66.5% of children aged 8 years with ASD had a documented autism test. Use of autism tests varied widely across sites: 24.7% (New Jersey) to 93.5% (Puerto Rico) of children aged 8 years with ASD had a documented autism test in their records. The most common tests documented for children aged 8 years were the Autism Diagnostic Observation Schedule, Autism Spectrum Rating Scales, Childhood Autism Rating Scale, Gilliam Autism Rating Scale, and Social Responsiveness Scale. INTERPRETATION: Prevalence of ASD among children aged 8 years was higher in 2022 than previous years. ASD prevalence was higher among A/PI, Black, and Hispanic children aged 8 years than White children aged 8 years, continuing a pattern first observed in 2020. A/PI, Black, and Hispanic children aged 8 years with ASD were also more likely than White or multiracial children with ASD to have a co-occurring intellectual disability. Identification by age 48 months was higher among children born in 2018 compared with children born in 2014, suggesting increased early identification consistent with historical patterns. PUBLIC HEALTH ACTION: Increased identification of autism, particularly among very young children and previously underidentified groups, underscores the increased demand and ongoing need for enhanced planning to provide equitable diagnostic, treatment, and support services for all children with ASD. The substantial variability in ASD identification across sites suggests opportunities to identify and implement successful strategies and practices in communities to ensure all children with ASD reach their potential. |
Hormonal Contraception after Use of Ulipristal Acetate as Emergency Contraception: A Systematic Review
Snyder EM , Curtis KM , Nguyen AT , Tadikonda A , Kortsmit K , Zapata LB , Whiteman MK . Contraception 2025 110898 OBJECTIVES: To systematically review literature on whether hormonal contraception following ulipristal acetate (UPA) for emergency contraception decreases the effectiveness of either drug. STUDY DESIGN: We searched multiple databases through December 2022 for studies assessing the interaction between UPA and hormonal contraception. The primary outcome was contraceptive effectiveness, measured by pregnancy rates or proxy measures (e.g., ovarian activity). We extracted and summarized findings from identified studies, assessed risk of bias for each study, and determined certainty of evidence for all outcomes. RESULTS: Four studies met inclusion criteria; all had low risk of bias. Two studies assessed whether UPA use affected the ability of oral contraceptives (OCs) to inhibit ovulation; no differences were observed in ovarian activity when starting OCs one day after UPA compared with starting OCs one day after placebo. Two studies assessed whether OC use affected the ability of UPA to delay ovulation; both studies observed higher proportions of ovulation when UPA was followed by OC use versus delayed or no OC use. One study assessed ovulation risk when UPA was taken after missed OCs, followed by immediate versus delayed OC resumption; no ovulations occurred within the first five days after UPA administration in either group, but there was greater risk of ovulation beyond five days with delayed versus immediate OC resumption. CONCLUSIONS: While there is no evidence that UPA affects the ability of hormonal contraception to inhibit ovulation, hormonal contraception use immediately or soon after UPA may decrease UPA's ability to delay ovulation. The certainty of evidence ranged from moderate to very low. IMPLICATIONS: If a patient desires hormonal contraception after UPA, an interaction with UPA can be avoided by delaying initiation or resumption of hormonal contraception. The risk of pregnancy due to decreased effectiveness of UPA with immediate hormonal contraception should be balanced against the risk of subsequent pregnancy due to delay or non-start of hormonal contraception. |
Human cases of highly pathogenic avian influenza A(H5N1) - California, September-December 2024
Zhu S , Harriman K , Liu C , Kraushaar V , Hoover C , Shim K , Brummitt SI , Limas J , Garvey K , McNary J , Gao NJ , Ryder R , Stavig B , Schapiro J , Morales C , Wadford DA , Howard H , Heffelfinger J , Campagna R , Iniguez-Stevens E , Gharibi H , Lopez D , Esbenshade L , Ptomey P , Trivedi KK , Herrera JA , Locke J , Moss N , Rzucidlo P , Hernandez K , Nguyen M , Paul S , Mateo J , Del Carmen Luna C , Chang Y , Rangel M , DeLeon K , Masood A , Papasozomenos T , Moua P , Reinhart K , Kniss K , Davis CT , Kirby MK , Pan E , Murray EL . MMWR Morb Mortal Wkly Rep 2025 74 (8) 127-133 ![]() ![]() Persons who work closely with dairy cows, poultry, or other animals with suspected or confirmed infection with highly pathogenic avian influenza (HPAI) A(H5N1) viruses are at increased risk for infection. In September 2024, the California Department of Public Health was notified of the first human case of HPAI A(H5N1) in California through monitoring of workers on farms with infected cows. During September 30-December 24, 2024, a total of 38 persons received positive test results for HPAI A(H5N1) viruses in California; 37 were dairy farm workers with occupational exposure to sick cows, and one was a child aged <18 years with an undetermined exposure, the first pediatric HPAI A(H5N1) case reported in the United States. All patients had mild illness. The identification of cases associated with occupational exposure to HPAI A(H5N1) viruses on dairy farms highlights the continued risk for persons who work with infected animals. The pediatric case was identified through routine surveillance. Given recent increases in the prevalence of HPAI A(H5N1) viruses among some animal populations, public health agencies should continue to investigate cases of HPAI A(H5N1) in humans as part of control measures, pandemic preparedness, to identify concerning genetic changes, and to prevent and detect potential human-to-human transmission of the virus. To date, no human-to-human transmission of HPAI A(H5N1) virus has been identified in the United States. |
Efficacy and Safety of 4-Month Rifapentine-Based Tuberculosis Treatments in Persons with Diabetes
Kurbatova EV , Whitworth WC , Peddareddy LP , Phillips PPJ , Scott NA , Bryant KE , Dawson R , Cardoso SW , Samaneka W , Engle M , Waja Z , Sizemore E , Carr W , Dooley KE , Savic R , Swindells S , Chaisson RE , Dorman SE , Nahid P , Nguyen NV . Emerg Infect Dis 2025 31 (3) 467-476 A previous study demonstrated noninferior efficacy of 4-month rifapentine/moxifloxacin regimen for tuberculosis (TB) treatment compared with the standard regimen. We explored results among study participants with diabetes. Among 2,516 randomized participants, 181 (7.2%) had diabetes. Of 166 participants with diabetes in the microbiologically eligible analysis group, 26.3% (15/57) had unfavorable outcomes in the control regimen, 13.8% (8/58) in the rifapentine/moxifloxacin regimen, and 29.4% (15/51) in the rifapentine regimen. The difference in proportion of unfavorable outcomes between the control and rifapentine/moxifloxacin arms in the microbiologically eligible analysis group was -12.5% (95% CI -27.0% to 1.9%); the difference between the control and rifapentine arms was 3.1% (95% CI -13.8% to 20.0%). Safety outcomes were similar in the rifapentine/moxifloxacin regimen and control arms. Among participants with TB and diabetes, the rifapentine/moxifloxacin arm had fewest unfavorable outcomes and was safe. Our findings indicate that the rifapentine/moxifloxacin regimen can be used in persons with TB and diabetes. |
Periods of susceptibility for associations between phthalate exposure and preterm birth: Results from a pooled analysis of 16 US cohorts
Friedman A , Welch BM , Keil AP , Bloom MS , Braun JM , Buckley JP , Dabelea D , Factor-Litvak P , Meeker JD , Michels KB , Padmanabhan V , Starling AP , Weinberg CR , Aalborg J , Alshawabkeh AN , Barrett ES , Binder AM , Bradman A , Bush NR , Calafat AM , Cantonwine DE , Christenbury KE , Cordero JF , Engel SM , Eskenazi B , Harley KG , Hauser R , Herbstman JB , Holland N , James-Todd T , Jukic AMZ , Lanphear BP , McElrath TF , Messerlian C , Newman RB , Nguyen RHN , O'Brien KM , Rauh VA , Redmon JB , Rich DQ , Rosen EM , Sathyanarayana S , Schmidt RJ , Sparks AE , Swan SH , Wang C , Watkins DJ , Weinberger B , Wenzel AG , Wilcox AJ , Yolton K , Zhang Y , Zota AR , Ferguson KK . Environ Int 2025 198 109392 BACKGROUND: Phthalate exposure during pregnancy has been associated with preterm birth, but mechanisms of action may depend on the timing of exposure. OBJECTIVE: Investigate critical periods of susceptibility during pregnancy for associations between urinary phthalate metabolite concentrations and preterm birth. METHODS: Individual-level data were pooled from 16 US cohorts (N = 6045, n = 539 preterm births). We examined trimester-averaged urinary phthalate metabolite concentrations. Most phthalate metabolites had 2248, 3703, and 3172 observations in the first, second, and third trimesters, respectively. Our primary analysis used logistic regression models with generalized estimating equations (GEE) under a multiple informant approach to estimate trimester-specific odds ratios (ORs) of preterm birth and significant (p < 0.20) heterogeneity in effect estimates by trimester. Adjusted models included interactions between each covariate and trimester. RESULTS: Differences in trimester-specific associations between phthalate metabolites and preterm birth were most evident for di-2-ethylhexyl phthalate (DEHP) metabolites. For example, an interquartile range increase in mono (2-ethylhexyl) phthalate (MEHP) during the first and second trimesters was associated with ORs of 1.15 (95 % confidence interval [CI]: 0.99, 1.33) and 1.11 (95 % CI: 0.97, 1.28) for preterm birth, respectively, but this association was null in the third trimester (OR = 0.91 [95 % CI: 0.76, 1.09]) (p-heterogeneity = 0.03). CONCLUSION: The association of preterm birth with gestational biomarkers of DEHP exposure, but not other phthalate metabolites, differed by the timing of exposure. First and second trimester exposures demonstrated the greatest associations. Our study also highlights methodological considerations for critical periods of susceptibility analyses in pooled studies. |
Antiviral susceptibility of influenza A(H5N1) clade 2.3.2.1c and 2.3.4.4b viruses from humans, 2023-2024
Pascua PNQ , Chesnokov A , Nguyen HT , Di H , La Cruz J , Jang Y , Ivashchenko AA , Ivachtchenko AV , Karlsson EA , Sar B , Savuth C , Uyeki TM , Davis CT , Gubareva LV . Emerg Infect Dis 2025 31 (4) ![]() ![]() During 2023-2024, highly pathogenic avian influenza A(H5N1) viruses from clade 2.3.2.1c caused human infections in Cambodia and from clade 2.3.4.4b caused human infections in the Americas. We assessed the susceptibility of those viruses to approved and investigational antiviral drugs. Except for 2 viruses isolated from Cambodia, all viruses were susceptible to M2 ion channel-blockers in cell culture-based assays. In the neuraminidase inhibition assay, all viruses displayed susceptibility to neuraminidase inhibitor antiviral drugs oseltamivir, zanamivir, peramivir, laninamivir, and AV5080. Oseltamivir was ≈4-fold less potent at inhibiting the neuraminidase activity of clade 2.3.4.4b than clade 2.3.2.1c viruses. All viruses were susceptible to polymerase inhibitors baloxavir and tivoxavir and to polymerase basic 2 inhibitor pimodivir with 50% effective concentrations in low nanomolar ranges. Because drug-resistant viruses can emerge spontaneously or by reassortment, close monitoring of antiviral susceptibility of H5N1 viruses collected from animals and humans by using sequence-based analysis supplemented with phenotypic testing is essential. |
Homosexuality stigma and HIV risk behaviors among HIV-negative men who have sex with men in Vietnam
Thai TT , Nguyen LT , Hoang HT , Lung NB , Bui HTM , Ali M , Vu DB , Le GM . AIDS Care 2025 1-9 Stigma toward homosexuality plays an important role in the increased risk of acquiring or transmitting HIV among men who have sex with men (MSM). This study describes associations between three dimensions of homosexuality-related stigma (enacted, perceived and internalized) and HIV risk behaviors among HIV-negative MSM in Hanoi, Vietnam. A total of 1675 HIV-negative MSM were recruited from the baseline of a cohort study from 2017 to 2019 through respondent-driven, time-location and internet-based sampling strategies. Stigma was measured by a locally validated instrument, with a higher score indicated a higher level of stigma (from 1 to 4). Enacted stigma (mean = 2.10), perceived stigma (mean = 2.62) and internalized stigma (mean = 2.55) were found. About 25% of participants reported group sex and 6.3% reported drug use before or during group sex in the last 6 months. Enacted stigma was significantly associated with group sex (adjusted OR = 1.48; 95% CI 1.20-1.84) and drug use before or during group sex (adjusted OR = 1.68; 95% CI 1.19-2.36). Internalized stigma was significantly associated with group sex (adjusted OR = 1.27; 95% CI 1.05-1.53) and drug use before or during group sex (adjusted OR = 1.44; 95% CI 1.04-1.99). The results highlight the need for multifaced interventions at a multiple socio-ecological levels to reduce stigma toward homosexuality. |
Associations between disability status and stressors experienced due to the COVID-19 pandemic among women with a recent live birth, 2020
Steele-Baser M , Bombard JM , Cassell CH , Kortsmit K , Thierry JM , D'Angelo DV , Ellington SR , Salvesen von Essen B , Nguyen AT , Cruz T , Warner L . Disabil Health J 2025 101779 BACKGROUND: Women with disability face more stressors around the time of pregnancy than women without disability. Limited research exists on stressors experienced due to the COVID-19 pandemic among pregnant and postpartum women with and without disability. OBJECTIVE: Examine the association between disability status and experiencing certain COVID-19 stressors among women with a recent live birth. METHODS: We analyzed Pregnancy Risk Assessment Monitoring System data from 14 jurisdictions implementing the Disability and Maternal COVID-19 Experiences supplement surveys among women with a live birth from June-December 2020. We examined the prevalence of 12 individual stressors and seven stressor types (any stressor, economic, housing, childcare, food insecurity, mental health, and partner-related), by disability status. For each stressor type, we calculated adjusted prevalence ratios (aPRs) using logistic regression to determine if women with disability were more likely to experience particular stressor types, controlling for respondent age, education, race and ethnicity, marital status, and payment at delivery. RESULTS: Among 5961 respondents, 6.3 % reported a disability. Compared with women without disability, those with disability were more likely to experience any stressor (aPR 1.19, 95 % CI 1.14-1.24), including economic (aPR 1.38, 95 % CI 1.23-1.56), housing (aPR 1.56, 95 % CI 1.09-2.24), childcare (aPR 1.32, 95 % CI 1.11-1.58), food insecurity (aPR 2.18, 95 % CI 1.72-2.78), mental health (aPR 1.49, 95 % CI 1.37-1.62), and partner-related stressors (aPR 2.00, 95 % CI 1.55-2.58). CONCLUSIONS: Findings highlight the challenges experienced by pregnant and postpartum women with disability during public health emergencies and considerations for this population in preparedness planning. |
Ongoing symptoms after acute SARS-CoV-2 or influenza infection in a case-ascertained household transmission study: 7 US Sites, 2021-2023
Bullock A , Dalton AF , Stockwell MS , McLaren SH , Sano E , Nguyen HQ , Rao S , Asturias E , Lutrick K , Ellingson KD , Maldonado Y , Mellis AM , Smith-Jeffcoat SE , Grijalva CG , Talbot HK , Rolfes MAR , Biddle JE , Zhu Y , Ledezma K , Pryor K , Valdez de Romero A , Vargas C , Petrie JG , Floris-Moore M , Bowman N . Clin Infect Dis 2025 ![]() ![]() BACKGROUND: The prevalence and risk factors for ongoing symptoms following severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) [SCV2]) or influenza infection are not well characterized. We conducted a prospective cohort study of households wherein ≥1 individual was infected with SCV2 or influenza to evaluate prevalence of and factors associated with ongoing symptoms at 90 days. METHODS: Index cases and their household contacts provided baseline health and sociodemographic information and collected daily respiratory specimens for 10 days following enrollment. Participants completed a follow-up survey 90 days after enrollment to characterize ongoing symptoms. RESULTS: We analyzed 1967 participants enrolled between December 2021 and May 2023. The risk of ongoing symptoms did not differ by infection status in SCV2 (SCV2-positive: 15.6%; SCV2-negative: 13.9%; odds ratio [OR]: 1.14; 95% CI: .7-1.69) or influenza (influenza-positive: 8.8%; influenza-negative: 10.0%; OR: .87; 95% CI: .45-1.72) households. However, among study participants with a documented infection, SCV2-positive participants had nearly twice the odds of ongoing symptoms as influenza-positive participants (OR: 1.92; 95% CI: 1.27-2.97). CONCLUSIONS: These results suggest that SCV2 households have a significantly higher prevalence of ongoing symptoms compared with influenza households (OR: 1.78; 95% CI: 1.28-2.47). Among participants with SCV2 infection, underlying conditions (adjusted OR [aOR]: 2.65; 95% CI: 1.80-3.90) and coronavirus disease 2019 (COVID-19)-like symptoms (aOR: 2.92; 95% CI: 1.15-7.43) during acute infection increased odds of ongoing symptoms at 90 days, whereas hybrid immunity reduced the odds of ongoing symptoms (aOR: 0.44; 95% CI: .22-.90). |
Global guideline for the diagnosis and management of candidiasis: an initiative of the ECMM in cooperation with ISHAM and ASM
Cornely OA , Sprute R , Bassetti M , Chen SC , Groll AH , Kurzai O , Lass-Flörl C , Ostrosky-Zeichner L , Rautemaa-Richardson R , Revathi G , Santolaya ME , White PL , Alastruey-Izquierdo A , Arendrup MC , Baddley J , Barac A , Ben-Ami R , Brink AJ , Grothe JH , Guinea J , Hagen F , Hochhegger B , Hoenigl M , Husain S , Jabeen K , Jensen HE , Kanj SS , Koehler P , Lehrnbecher T , Lewis RE , Meis JF , Nguyen MH , Pana ZD , Rath PM , Reinhold I , Seidel D , Takazono T , Vinh DC , Zhang SX , Afeltra J , Al-Hatmi AMS , Arastehfar A , Arikan-Akdagli S , Bongomin F , Carlesse F , Chayakulkeeree M , Chai LYA , Chamani-Tabriz L , Chiller T , Chowdhary A , Clancy CJ , Colombo AL , Cortegiani A , Corzo Leon DE , Drgona L , Dudakova A , Farooqi J , Gago S , Ilkit M , Jenks JD , Klimko N , Krause R , Kumar A , Lagrou K , Lionakis MS , Lmimouni BE , Mansour MK , Meletiadis J , Mellinghoff SC , Mer M , Mikulska M , Montravers P , Neoh CF , Ozenci V , Pagano L , Pappas P , Patterson TF , Puerta-Alcalde P , Rahimli L , Rahn S , Roilides E , Rotstein C , Ruegamer T , Sabino R , Salmanton-García J , Schwartz IS , Segal E , Sidharthan N , Singhal T , Sinko J , Soman R , Spec A , Steinmann J , Stemler J , Taj-Aldeen SJ , Talento AF , Thompson GR 3rd , Toebben C , Villanueva-Lozano H , Wahyuningsih R , Weinbergerová B , Wiederhold N , Willinger B , Woo PCY , Zhu LP . Lancet Infect Dis 2025 ![]() Candida species are the predominant cause of fungal infections in patients treated in hospital, contributing substantially to morbidity and mortality. Candidaemia and other forms of invasive candidiasis primarily affect patients who are immunocompromised or critically ill. In contrast, mucocutaneous forms of candidiasis, such as oral thrush and vulvovaginal candidiasis, can occur in otherwise healthy individuals. Although mucocutaneous candidiasis is generally not life-threatening, it can cause considerable discomfort, recurrent infections, and complications, particularly in patients with underlying conditions such as diabetes or in those taking immunosuppressive therapies. The rise of difficult-to-treat Candida infections is driven by new host factors and antifungal resistance. Pathogens, such as Candida auris (Candidozyma auris) and fluconazole-resistant Candida parapsilosis, pose serious global health risks. Recent taxonomic revisions have reclassified several Candida spp, potentially causing confusion in clinical practice. Current management guidelines are limited in scope, with poor coverage of emerging pathogens and new treatment options. In this Review, we provide updated recommendations for managing Candida infections, with detailed evidence summaries available in the appendix. |
The 3 moments for U=U education
Huong PTT , Nguyen A , Nhan DT , Dziuban EJ , Pollack TM . Lancet HIV 2025 |
Evaluating injury and illness trends in federal and postal service employees using Workers' Compensation claims data 2007–2022
Wurzelbacher Steven J , Krieg Edward F , Meyers Alysha R , Bushnell Paul T , Van Nguyen Nhut , Tseng Chih-Yu . J Occup Environ Med 2025 67 (2) 132-152 This study demonstrated that workers' compensation claims data can provide insights into federal employees' workplace injuries and illnesses. Employing agencies, safety staff, and occupational clinicians can use these data to direct efforts to improve conditions to prevent injuries/illnesses, optimize programs for injured worker treatment, rehabilitation, accommodation, and stay-at-work or return-to-work programs. Objective: The purpose of this study was to understand federal workplace injury/illness trends. Methods: Over 1.5 million federal and Postal Service employee workers' compensation (WC) claims from 2007 to 2022 were linked to employment data and analyzed. Results: From 2007 to 2019, falls, slips, trips represented the highest proportion of claims (30.7%), followed by overexertion and bodily reaction (24.4%), unclassified (16.4%), contact with objects and equipment (13.1%), violence and other injuries by persons or animals (8.8%), transportation incidents (4.0%), exposure to harmful substances or environments (2.5%), and fires and explosions (0.24%). From 2020 to 2022, COVID-19 drove a major shift to exposure to harmful substances or environments representing the highest proportion of claims (44.3%). Conclusions: Claims data represent a potentially rich data source that employing agencies can use to focus prevention and treatment of injury/illness. |
Estimating the generation time for influenza transmission using household data in the United States
Chan LYH , Morris SE , Stockwell MS , Bowman NM , Asturias E , Rao S , Lutrick K , Ellingson KD , Nguyen HQ , Maldonado Y , McLaren SH , Sano E , Biddle JE , Smith-Jeffcoat SE , Biggerstaff M , Rolfes MA , Talbot HK , Grijalva CG , Borchering RK , Mellis AM . Epidemics 2025 50 100815 ![]() ![]() The generation time, representing the interval between infections in primary and secondary cases, is essential for understanding and predicting the transmission dynamics of seasonal influenza, including the real-time effective reproduction number (Rt). However, comprehensive generation time estimates for seasonal influenza, especially since the 2009 influenza pandemic, are lacking. We estimated the generation time utilizing data from a 7-site case-ascertained household study in the United States over two influenza seasons, 2021/2022 and 2022/2023. More than 200 individuals who tested positive for influenza and their household contacts were enrolled within 7 days of the first illness in the household. All participants were prospectively followed for 10 days, completing daily symptom diaries and collecting nasal swabs, which were then tested for influenza via RT-PCR. We analyzed these data by modifying a previously published Bayesian data augmentation approach that imputes infection times of cases to obtain both intrinsic (assuming no susceptible depletion) and realized (observed within household) generation times. We assessed the robustness of the generation time estimate by varying the incubation period, and generated estimates of the proportion of transmission occurring before symptomatic onset, the infectious period, and the latent period. We estimated a mean intrinsic generation time of 3.2 (95 % credible interval, CrI: 2.9-3.6) days, with a realized household generation time of 2.8 (95 % CrI: 2.7-3.0) days. The generation time exhibited limited sensitivity to incubation period variation. Estimates of the proportion of transmission that occurred before symptom onset, the infectious period, and the latent period were sensitive to variations in the incubation period. Our study contributes to the ongoing efforts to refine estimates of the generation time for influenza. Our estimates, derived from recent data following the COVID-19 pandemic, are consistent with previous pre-pandemic estimates, and will be incorporated into real-time Rt estimation efforts. |
Exposure to secondhand cannabis smoke among children
Tripathi O , Parada H Jr , Sosnoff C , Matt GE , Quintana PJE , Shi Y , Liles S , Wang L , Caron KT , Oneill J , Nguyen B , Blount BC , Bellettiere J . JAMA Netw Open 2025 8 (1) e2455963 IMPORTANCE: The degree that in-home cannabis smoking can be detected in the urine of resident children is unclear. OBJECTIVE: Test association of in-home cannabis smoking with urinary cannabinoids in children living at home. DESIGN, SETTING, AND PARTICIPANTS: This cross-sectional study used baseline data from Project Fresh Air, a 2012-2016 randomized clinical trial to reduce fine particulate matter levels. Eligible participants were recruited from households in San Diego County, California, with children under age 14 years and an adult tobacco smoker in residence. Children's urine samples were analyzed in 2022. EXPOSURES: In-home cannabis smoking, measured by: parent or guardian report of in-home cannabis smoking; number of daily nonspecific smoking events computed via an air particle count algorithm; and number of daily cannabis smoking events ascertained by residualization, adjusting for air nicotine, tobacco smoking, and other air particle generating or ventilating activities. MAIN OUTCOMES AND MEASURES: Levels of the cannabis biomarker Δ9-tetrahydrocannabinol (THC) and its major metabolites, 11-hydroxy-Δ9-tetrahydrocannabinol and 11-nor-9-carboxy-Δ9-tetrahydrocannabinol. Biomarker molar equivalents were summed to represent total THC equivalents (TTE) in urine. Logistic regression assessed whether in-home smoking was associated with cannabis biomarker detection. For children with detectable urinary cannabinoids, linear regression assessed in-home smoking association with quantity of urinary TTE. RESULTS: A total of 275 children were included in analysis (mean [SD] age, 3.6 [3.6] years; 144 male [52.4%]; 38 Black [13.8%], 132 Hispanic [48.0%], and 52 White [18.9%]). Twenty-nine households (10.6%) reported in-home cannabis smoking in the past 7 days; 75 children [27.3%] had detectable urinary cannabinoids. Odds of detectable TTE in children's urine were significantly higher in households with reported in-home cannabis smoking than households without (odds ratio [OR], 5.0; 95% CI, 2.4-10.4) and with each additional ascertained daily cannabis smoking event (OR, 2.5; 95% CI, 1.6-3.9). Although the point estimate for TTE levels was higher among children with detectable urinary cannabinoids and exposure to more daily cannabis smoking events (increase per event, 35.68%; 95% CI, -7.12% to 98.21%), the difference was not statistically significant. CONCLUSIONS AND RELEVANCE: In this cross-sectional study, in-home cannabis smoking was associated with significantly increased odds of child exposure to cannabis smoke, as assessed by urinary cannabinoid biomarkers. As young children spend most of their time at home, reducing in-home cannabis smoking could substantially reduce their exposure to the toxic and carcinogenic chemicals found in cannabis smoke. |
Alzheimer's disease and related dementias among Medicare beneficiaries aged ≥ 65 years in rural America, by Census region and select demographic characteristics: 2020
Matthews KA , Murray CT , Nguyen BL , Spears KS , Jackson EMJ , Hall DM , McGuire LC . J Rural Health 2025 41 (1) e12902 PURPOSE: Alzheimer's disease and related dementias (ADRD) are a significant public health concern characterized by memory decline that, over time, leads to loss of independence. This study reports ADRD diagnosis rates among Medicare beneficiaries aged ≥ 65 years in rural America. METHODS: We conducted a descriptive analysis of Medicare Fee-for-Service (FFS) and Medicare Advantage enrollees using administrative Medicare data from 2020. Combining data from Medicare FFS and Medicare Advantage produces a more complete and representative sample of older adults than previous studies that used FFS data alone. Nonmetropolitan counties were used to define rural. Rural ADRD diagnosis rates, stratified by age, sex, race/ethnicity, and Census region, were adjusted using the 2000 Census population standard. FINDINGS: The study population consisted of 54 million Medicare data Fee-for-Service (FFS) and Medicare Advantage enrollees aged ≥ 65; 5.3 million beneficiaries were diagnosed with ADRD, and 16.2% (n = 861,337) of beneficiaries diagnosed with ADRD resided in rural America. The age-adjusted ADRD diagnosis rate was slightly lower in rural America (9.6 per 100 beneficiaries) than in the United States (10.0 per 100 beneficiaries). The South Census region had the highest rural ADRD diagnosis rates. CONCLUSION: These findings underscore the need for targeted interventions and support mechanisms to address the growing burden of ADRD in rural communities. |
Anticipated facilitators and barriers for long-acting injectable antiretrovirals as HIV treatment and prevention in Vietnam: a qualitative study among healthcare workers
Dang MT , Le YN , Naz-McLean S , Vo NTT , Do PT , Doan LTT , Do NT , Nguyen MT , Phan AH , Dziuban EJ , Bhatia R , Cosimi L , Phan HTT , Pollack TM . BMC Infect Dis 2024 24 (1) 1462 BACKGROUND: Long-acting injectable antiretrovirals (LAI-ARVs) for HIV prevention and treatment have been demonstrated in clinical trials to be non-inferior to daily oral medications, providing an additional option to help users overcome the challenges of daily adherence. Approval and implementation of these regimens in low- and middle-income settings have been limited. METHOD: This study describes the anticipated barriers and facilitators to implementing LAI-ARVs in Vietnam to inform future roll-out. From July to August 2022, we conducted 27 in-depth interviews with healthcare workers and public health stakeholders involved in HIV programs at national, provincial, and clinic levels across four provinces in Vietnam. The interviews followed a semi-structured questionnaire and were audio recorded. Data were analyzed using a rapid thematic analysis approach to identify facilitators and barriers to the adoption of LAI-ARVs. RESULTS: In total, 27 participants from 4 provinces were interviewed including 14 (52%) men and 13 (48%) women. Participants median age was 48 years and they had 11.5 years of experience with HIV services and programs. Perceived user-level facilitators included the greater convenience of injectables in comparison to oral regimens, while barriers included the increased frequency of visits, fear of pain and side effects, and cost. Clinic-level facilitators included existing technical capacity to administer injections and physical storage availability in district health centers, while barriers included lack of space and equipment for administering injections for HIV-related services, concerns about cold chain maintenance for LAI-ART, and workload for healthcare workers. Health system-level facilitators included existing mechanisms for medication distribution, while barriers included regulatory approval processes and concerns about supply chain continuity. CONCLUSION: Overall, participants were optimistic about the potential impact of LAI-ARVs but highlighted important considerations at multiple levels needed to ensure successful implementation in Vietnam. CLINICAL TRIAL NUMBER: Not applicable. |
Antimicrobial prescribing practices for enteric bacterial infections in an integrated health care system, Wisconsin, 2004-2017
Olson SC , Francious Watkins LK , Scallan Walter E , Friedman CR , Nguyen HQ . J Infect Public Health 2024 18 (1) 102613 BACKGROUND: Few studies have evaluated antibiotic prescribing practices for bacterial enteric infections. Unnecessary antibiotics can result in adverse events and contribute to the emergence of antimicrobial resistance. We assessed treatment practices among patients with laboratory-confirmed enteric infections in a regional healthcare system in Wisconsin, USA. METHODS: We used electronic health records to identify patients with laboratory-confirmed nontyphoidal Salmonella, Shigella, Shiga toxin-producing Escherichia coli (STEC), and Campylobacter infections during 2004-2017. Relevant clinical data, including diagnosis codes for chronic conditions and receipt of immunosuppressive medications and antibiotic prescriptions, were extracted. We defined appropriate treatment based on pathogen, patient characteristics, and practice guidelines for the study period. RESULTS: We identified 2064 patients infected with Campylobacter (1251; 61 %), Salmonella (564; 27 %), STEC (199; 10 %), or Shigella (50; 2 %). Overall, 425 (20 %) patients were immunocompromised, ranging from 17 % with Salmonella to 46 % with STEC. There were 220 (11 %) hospitalizations. Antibiotics were prescribed most frequently for Campylobacter (53 %), followed by Shigella (46 %) and Salmonella (44 %) infections. Among those prescribed antibiotics, prescriptions were appropriate for 71 % of Campylobacter, 100 % of Shigella, and 81 % of Salmonella infections. Antibiotics were prescribed for 24 % of STEC infections, despite recommendations against use. Guideline adherence generally decreased with age, except for Shigella infections, where adherence was highest for adults ≥ 50 years. CONCLUSIONS: Antibiotic prescribing for laboratory-confirmed enteric infections was usually appropriate but did not follow practice guidelines in a substantial minority of cases, presenting opportunity for improvement. Antibiotic stewardship initiatives should address acute bacterial gastrointestinal infections in addition to other common infections. |
Inequities in intimate partner homicide: social determinants of health mediate racial/ethnic disparities
Rowh A , Zhang X , Nguyen B , Jack S . Am J Prev Med 2024 INTRODUCTION: Intimate partner violence accounts for up to one half of all homicides of women in the United States. Rates of intimate partner homicide are associated with both race/ethnicity and social determinants of health, but their relative contribution is incompletely understood. METHODS: We used negative binomial regression to model the relationship between counties' racial/ethnic composition and their rates of intimate partner homicide of women, controlling for urbanicity, median income, gender pay gap, unemployment, school funding, and violent crime rate. We used data from 49 states and the District of Columbia between 2016 and 2021. Analyses were conducted in 2024. RESULTS: In unadjusted analysis, counties with a lower proportion of White residents experienced higher rates of intimate partner homicide (IRR = 1.11; 95% CI: 1.08 - 1.13). When controlling for social determinants of health, this association was not observed (IRR = 1.01; 95% CI: 0.97 - 1.04). Median income, school funding, and violent crime rate were independent predictors of intimate partner homicide in the multivariate model. CONCLUSIONS: Racial/ethnic composition of a population does not independently predict its rate of intimate partner homicide when controlling for social determinants of health. Racial/ethnic inequities in intimate partner homicide are largely attributable to structural factors, which may be modifiable through policy changes. |
Intimate partner violence and pregnancy and infant health outcomes - Pregnancy Risk Assessment Monitoring System, nine U.S. Jurisdictions, 2016-2022
Steele-Baser M , Brown AL , D'Angelo DV , Basile KC , Lee RD , Nguyen AT , Cassell CH . MMWR Morb Mortal Wkly Rep 2024 73 (48) 1093-1098 Intimate partner violence (IPV) can include emotional, physical, or sexual violence. IPV during pregnancy is a preventable cause of injury and death with negative short- and long-term impacts for pregnant women, infants, and families. Using data from the 2016-2022 Pregnancy Risk Assessment Monitoring System in nine U.S. jurisdictions, CDC examined associations between IPV during pregnancy among women with a recent live birth and the following outcomes: prenatal care initiation, health conditions during pregnancy (gestational diabetes, pregnancy-related hypertension, and depression), substance use during pregnancy, and infant birth outcomes. Overall, 5.4% of women reported IPV during pregnancy. Emotional IPV was most prevalent (5.2%), followed by physical (1.5%) and sexual (1.0%) IPV. All types were associated with delayed or no prenatal care; depression during pregnancy; cigarette smoking, alcohol use, marijuana or illicit substance use during pregnancy; and having an infant with low birth weight. Physical, sexual, and any IPV were associated with having a preterm birth. Physical IPV was associated with pregnancy-related hypertension. Evidence-based prevention and intervention strategies that address multiple types of IPV are important for supporting healthy parents and families because they might reduce pregnancy complications, depression and substance use during pregnancy, and adverse infant outcomes. |
Detection of antiretroviral drug-resistant mutations and HIV-1 subtypes in circulation among men who have sex with men, SEM females and female sex workers: results of Vietnam's HIV Sentinel Surveillance Plus (HSS+) system, 2018 - 2020
Ngo HHT , Pham TPT , Hoang HTT , Bui DH , Phan HTT , Nguyen QC , Duong TC , Bui HT , Nguyen HTT , Le MQT , Dang AD , McFarland W , Truong HM , Pham TH . J Acquir Immune Defic Syndr 2025 98 (1) 29-36 ![]() ![]() BACKGROUND: HIV drug resistance can reduce the effectiveness of antiretroviral drugs in preventing morbidity and mortality, limit options for treatment, and prevention. Our study aimed to assess HIV-1 subtypes and HIV drug resistance among key populations in HIV Sentinel Surveillance Plus Behavior in 2018 and 2020. METHODS: One-stage venue-based cluster sampling was used to recruit participants at hotspots identified for men who have sex with men (MSM) in 7 provinces and sexual minority females and female sex workers (FSW) in 13 provinces. Participants completed a standard questionnaire about risk and preventive behaviors, and antiretroviral therapy history, and provided intravenous blood for HIV testing. HIV drug resistance testing was conducted on HIV-positive samples with viral load >1000 copies/mL. RESULTS: A total of 185 of 435 (42.5%) HIV-positive samples had viral load ≥1000 copies/mL, of which 130 of 136 from MSM and 26 of 49 from FSW were successfully sequenced. Six HIV-1 subtypes were detected (CRF01_AE, A, CRF07/08_BC, B, C, CRF25_cpx), with CRF01_AE (82.7%, 129/156) the most common. Drug resistance mutations were detected in 16.7% of participants overall (26/156), in 15.4% (20/130) of MSM, and in 23.1% (6/26) of FSW. Mutations associated with resistance to non-nucleoside reverse transcriptase inhibitor (NNRTI) were the most frequently detected (73.1%, 19/26). The high level of resistance was presented in NNRTI and nucleoside reverse transcriptase inhibitors classes. There are 10 major resistance mutations detected with nucleoside reverse transcriptase inhibitors (M184VI-25.0%, K65KR-50.0%, Y115F-25%), NNRTI (K103N-21.1%, E138A-10.5%, V106M-5.3%, K101E-5.3%, G190A-5.3%), protease inhibitors (L33F-40.0%, M46L-20.0%). CONCLUSIONS: Vietnam's HIV Sentinel Surveillance Plus system identified an emerging strain of HIV-1 and mutations associated with resistance to multiple drug classes among MSM and FSW. |
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