Last data update: May 13, 2024. (Total: 46773 publications since 2009)
Records 1-9 (of 9 Records) |
Query Trace: Schubert S[original query] |
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Understanding the impact of Mpox on sexual health clinical services: A national knowledge, attitudes, and practices survey-United States, 2022
Schubert SL , Miele K , Quilter LAS , Agnew-Brune C , Coor A , Kachur R , Lewis F , Ard KL , Wendel K , Anderson T , Nagendra G , Tromble E . Sex Transm Dis 2024 51 (1) 38-46 BACKGROUND: During the 2022 mpox outbreak, most cases were associated with sexual contact, and many people with mpox sought care from sexual health clinics and programs. The National Network of STD Clinical Prevention Training Centers, in partnership with the Centers for Disease Control and Prevention, conducted a survey of US sexual health clinics and programs to assess knowledge, practices, and experiences around mpox to inform a future public health response. METHODS: Between August 31 and September 13, 2022, the National Network of STD Clinical Prevention Training Centers facilitated a web-based survey. Descriptive statistics were generated in R. RESULTS: Among 168 responses by clinicians (n = 131, 78%) and program staff (n = 37, 22%), more than half (51%) reported at least somewhat significant mpox-related clinical disruptions including burdensome paperwork requirements for mpox testing (40%) and tecovirimat use (88%). Long clinic visits (51%) added additional burden, and the median mpox-related visit lasted 1 hour. Few clinicians felt comfortable with advanced pain management, and clinicians felt most uninformed about preexposure (19%) and postexposure (24%) prophylaxis. Of 89 respondents involved in vaccination, 61% reported using equity strategies; however, accounts of these strategies revealed a focus on guideline or risk factor-based screenings instead of equity activities. CONCLUSIONS: These findings highlight the substantial impact of the 2022 mpox outbreak on sexual health care in the United States. Critical gaps and barriers were identified that may inform additional mpox training and technical assistance, including challenges with testing, diagnosis, and management as well as a disconnect between programs' stated goal of equity and operationalization of strategies to achieve equity. |
COVID-19 case definitions, diagnostic testing criteria, and surveillance across the pandemic’s 25 highest burden countries (preprint)
Suthar AB , Schubert S , Garon J , Couture A , Brown AM , Charania S . medRxiv 2021 2021.05.11.21257047 Objective We compared suspect, probable, and confirmed case definitions, as well as diagnostic testing criteria, used in the COVID-19 pandemic’s 25 highest burden countries to aid interpretation of global and national surveillance data.Methods We identified the COVID-19 pandemic’s 25 countries with the highest disease burden based on the number of cumulative reported cases to the World Health Organization (WHO) as of 1 October 2020. We searched official websites of these countries for suspect, probable, and confirmed case definitions. Given that confirmation of COVID-19 usually requires diagnostic testing, we also searched for diagnostic testing eligibility criteria in these countries. Extracted case definitions and testing criteria were managed in a database and analyzed in Microsoft Excel.Findings We identified suspect, probable, and confirmed case definitions in 96%, 64%, and 100% of countries, respectively. Testing criteria were identified in 100% of countries. 56% of identified countries followed WHO recommendations for using a combination of clinical and epidemiological criteria as part of the suspect case definition. 75% of identified countries followed WHO recommendations on using clinical, epidemiological, and diagnostic criteria for probable cases. 72% of countries followed WHO recommendations on using PCR testing for confirming a case of COVID-19. Finally, 64% of countries used testing eligibility criteria at least as permissive as WHO.Conclusion There is marked heterogeneity in who is eligible for testing in countries and how countries define a case of COVID-19. This affects the ability to compare burden, transmission, and response impact estimates derived from case surveillance data across countries.Competing Interest StatementThe authors have declared no competing interest.Funding StatementNoneAuthor DeclarationsI confirm all relevant ethical guidelines have been followed, and any necessary IRB and/or ethics committee approvals have been obtained.YesThe details of the IRB/oversight body that provided approval or exemption for the research described are given below:Not applicableAll necessary patient/participant consent has been obtained and the appropriate institutional forms have been archived.YesI understand that all clinical trials and any other prospective interventional studies must be registered with an ICMJE-approved registry, such as ClinicalTrials.gov. I confirm that any such study reported in the manuscript has been registered and the trial registration ID is provided (note: if posting a prospective study registered retrospectively, please provide a statement in the trial ID field explaining why the study was not registered in advance).YesI have followed all appropriate research reporting guidelines and uploaded the relevant EQUATOR Network research reporting checklist(s) and other pertinent material as supplementary files, if applicable.YesAll relevant data are available in the manuscript body and appendices. |
Serological and metagenomic interrogation of cerebrospinal fluid implicates enteroviruses in pediatric acute flaccid myelitis (preprint)
Schubert RD , Hawes IA , Ramachandran PS , Ramesh A , Crawford ED , Pak JE , Wu W , Cheung CK , O'Donovan BD , Tato CM , Lyden A , Tan M , Sit R , Sowa GA , Sample HA , Zorn KC , Banerji D , Khan LM , Bove R , Hauser SL , Gelfand AA , Johnson-Kerner BL , Nash K , Krishnamoorthy KS , Chitnis T , Ding JZ , McMillan HJ , Chiu CY , Briggs B , Glaser CA , Yen C , Chu V , Wadford DA , Dominguez SR , Ng TFF , Marine RL , Lopez AS , Nix WA , Soldatos A , Gorman MP , Benson L , Messacar K , Konopka-Anstadt JL , Oberste MS , DeRisi JL , Wilson MR . bioRxiv 2019 666230 Background Since 2014, the United States has experienced a biennial spike in pediatric acute flaccid myelitis (AFM). Epidemiologic evidence suggests non-polio enteroviruses (EVs) are a potential etiology, yet EV RNA is rarely detected in cerebrospinal fluid (CSF) and only inconsistently identified from the respiratory tract, serum, or stool.Methods We interrogated CSF from children with AFM (n=42) and pediatric controls with other neurologic diseases (OND) (n=58). Samples were incubated with T7 bacteriophage expressing 481,966 sixty-two amino acid peptides with a fourteen amino acid overlap tiled across all known vertebrate virus and arbovirus genomes, an adaption of the VirScan method. Antibody-bound phage were deep sequenced to quantify enriched peptides with normalized counts expressed as reads per hundred thousand (rpK). EV antibody findings were confirmed with ELISA using whole viral protein 1 (VP1) from contemporary enterovirus (EV) A71 and D68 strains. Separately, metagenomic next-generation sequencing (mNGS) of CSF RNA, both unbiased and with targeted enrichment for EVs, was performed.Results The most significantly enriched viral family by VirScan of CSF in AFM versus OND controls was Picornaviridae (mean rpK 11,266 versus mean rpK 950, p-adjusted < 0.001, Wilcoxon signed-rank test with Bonferroni adjustment). Enriched Picornaviridae peptides belonged almost entirely to the genus Enterovirus. The mean EV VP1 ELISA signal in AFM (mean OD 0.51) was significantly higher than OND controls (mean OD 0.08, p-value < 0.001, Mann-Whitney test). mNGS did not detect additional enterovirus RNA in CSF.Conclusion Despite the rare detection of EV RNA in the CNS of patients with AFM, a pan-viral serologic assay identified high levels of CSF EV antibodies in AFM CSF compared to CSF from OND controls. These results provide further evidence for a causal role of non-polio enteroviruses in AFM. |
Multistate Outbreak of SARS-CoV-2 Infections, Including Vaccine Breakthrough Infections, Associated with Large Public Gatherings, United States.
Gharpure R , Sami S , Vostok J , Johnson H , Hall N , Foreman A , Sabo RT , Schubert PL , Shephard H , Brown VR , Brumfield B , Ricaldi JN , Conley AB , Zielinski L , Malec L , Newman AP , Chang M , Finn LE , Stainken C , Mangla AT , Eteme P , Wieck M , Green A , Edmundson A , Reichbind D , Brown VJr , Quiñones L , Longenberger A , Hess E , Gumke M , Manion A , Thomas H , Barrios CA , Koczwara A , Williams TW , Pearlowitz M , Assoumou M , Senisse Pajares AF , Dishman H , Schardin C , Wang X , Stephens K , Moss NS , Singh G , Feaster C , Webb LM , Krueger A , Dickerson K , Dewart C , Barbeau B , Salmanson A , Madoff LC , Villanueva JM , Brown CM , Laney AS . Emerg Infect Dis 2022 28 (1) 35-43 During July 2021, severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) B.1.617.2 variant infections, including vaccine breakthrough infections, occurred after large public gatherings in Provincetown, Massachusetts, USA, prompting a multistate investigation. Public health departments identified primary and secondary cases by using coronavirus disease surveillance data, case investigations, and contact tracing. A primary case was defined as SARS-CoV-2 detected <14 days after travel to or residence in Provincetown during July 3-17. A secondary case was defined as SARS-CoV-2 detected <14 days after close contact with a person who had a primary case but without travel to or residence in Provincetown during July 3-August 10. We identified 1,098 primary cases and 30 secondary cases associated with 26 primary cases among fully and non-fully vaccinated persons. Large gatherings can have widespread effects on SARS-CoV-2 transmission, and fully vaccinated persons should take precautions, such as masking, to prevent SARS-CoV-2 transmission, particularly during substantial or high transmission. |
Coronavirus Disease Case Definitions, Diagnostic Testing Criteria, and Surveillance in 25 Countries with Highest Reported Case Counts.
Suthar AB , Schubert S , Garon J , Couture A , Brown AM , Charania S . Emerg Infect Dis 2022 28 (1) 148-156 We compared case definitions for suspected, probable, and confirmed coronavirus disease (COVID-19), as well as diagnostic testing criteria, used in the 25 countries with the highest reported case counts as of October 1, 2020. Of the identified countries, 56% followed World Health Organization (WHO) recommendations for using a combination of clinical and epidemiologic criteria as part of the suspected case definition. A total of 75% of identified countries followed WHO recommendations on using clinical, epidemiologic, and diagnostic criteria for probable cases; 72% followed WHO recommendations to use PCR testing to confirm COVID-19. Finally, 64% of countries used testing eligibility criteria at least as permissive as WHO. We observed marked heterogeneity in testing eligibility requirements and in how countries define a COVID-19 case. This heterogeneity affects the ability to compare case counts, transmission, and vaccine effectiveness, as well as estimates derived from case surveillance data across countries. |
Outbreak of SARS-CoV-2 Infections, Including COVID-19 Vaccine Breakthrough Infections, Associated with Large Public Gatherings - Barnstable County, Massachusetts, July 2021.
Brown CM , Vostok J , Johnson H , Burns M , Gharpure R , Sami S , Sabo RT , Hall N , Foreman A , Schubert PL , Gallagher GR , Fink T , Madoff LC , Gabriel SB , MacInnis B , Park DJ , Siddle KJ , Harik V , Arvidson D , Brock-Fisher T , Dunn M , Kearns A , Laney AS . MMWR Morb Mortal Wkly Rep 2021 70 (31) 1059-1062 During July 2021, 469 cases of COVID-19 associated with multiple summer events and large public gatherings in a town in Barnstable County, Massachusetts, were identified among Massachusetts residents; vaccination coverage among eligible Massachusetts residents was 69%. Approximately three quarters (346; 74%) of cases occurred in fully vaccinated persons (those who had completed a 2-dose course of mRNA vaccine [Pfizer-BioNTech or Moderna] or had received a single dose of Janssen [Johnson & Johnson] vaccine ≥14 days before exposure). Genomic sequencing of specimens from 133 patients identified the B.1.617.2 (Delta) variant of SARS-CoV-2, the virus that causes COVID-19, in 119 (89%) and the Delta AY.3 sublineage in one (1%). Overall, 274 (79%) vaccinated patients with breakthrough infection were symptomatic. Among five COVID-19 patients who were hospitalized, four were fully vaccinated; no deaths were reported. Real-time reverse transcription-polymerase chain reaction (RT-PCR) cycle threshold (Ct) values in specimens from 127 vaccinated persons with breakthrough cases were similar to those from 84 persons who were unvaccinated, not fully vaccinated, or whose vaccination status was unknown (median = 22.77 and 21.54, respectively). The Delta variant of SARS-CoV-2 is highly transmissible (1); vaccination is the most important strategy to prevent severe illness and death. On July 27, CDC recommended that all persons, including those who are fully vaccinated, should wear masks in indoor public settings in areas where COVID-19 transmission is high or substantial.* Findings from this investigation suggest that even jurisdictions without substantial or high COVID-19 transmission might consider expanding prevention strategies, including masking in indoor public settings regardless of vaccination status, given the potential risk of infection during attendance at large public gatherings that include travelers from many areas with differing levels of transmission. |
Pan-viral serology implicates enteroviruses in acute flaccid myelitis.
Schubert RD , Hawes IA , Ramachandran PS , Ramesh A , Crawford ED , Pak JE , Wu W , Cheung CK , O'Donovan BD , Tato CM , Lyden A , Tan M , Sit R , Sowa GA , Sample HA , Zorn KC , Banerji D , Khan LM , Bove R , Hauser SL , Gelfand AA , Johnson-Kerner BL , Nash K , Krishnamoorthy KS , Chitnis T , Ding JZ , McMillan HJ , Chiu CY , Briggs B , Glaser CA , Yen C , Chu V , Wadford DA , Dominguez SR , Ng TFF , Marine RL , Lopez AS , Nix WA , Soldatos A , Gorman MP , Benson L , Messacar K , Konopka-Anstadt JL , Oberste MS , DeRisi JL , Wilson MR . Nat Med 2019 25 (11) 1748-1752 Since 2012, the United States of America has experienced a biennial spike in pediatric acute flaccid myelitis (AFM)(1-6). Epidemiologic evidence suggests non-polio enteroviruses (EVs) are a potential etiology, yet EV RNA is rarely detected in cerebrospinal fluid (CSF)(2). CSF from children with AFM (n = 42) and other pediatric neurologic disease controls (n = 58) were investigated for intrathecal antiviral antibodies, using a phage display library expressing 481,966 overlapping peptides derived from all known vertebrate and arboviruses (VirScan). Metagenomic next-generation sequencing (mNGS) of AFM CSF RNA (n = 20 cases) was also performed, both unbiased sequencing and with targeted enrichment for EVs. Using VirScan, the viral family significantly enriched by the CSF of AFM cases relative to controls was Picornaviridae, with the most enriched Picornaviridae peptides belonging to the genus Enterovirus (n = 29/42 cases versus 4/58 controls). EV VP1 ELISA confirmed this finding (n = 22/26 cases versus 7/50 controls). mNGS did not detect additional EV RNA. Despite rare detection of EV RNA, pan-viral serology frequently identified high levels of CSF EV-specific antibodies in AFM compared with controls, providing further evidence for a causal role of non-polio EVs in AFM. |
Spectrum of changes seen with placental intravascular organisms
Schubert PT , Mason D , Martines R , Deleon-Carnes M , Zaki SR , Roberts DJ . Pediatr Dev Pathol 2018 22 (3) 1093526618801616 Fetal bacterial infections are a common cause of fetal/neonatal morbidity and mortality. The pathologic correlates of congenital bacterial infection include acute chorioamnionitis, acute villitis, and acute intervillositis. The strength of the association of congenital bacterial infection differs among these pathologies. Acute chorioamnionitis results usually from an ascending infection, and damage to the fetus is thought to be cytokine driven rather than damage secondary to bacteremia. Acute villitis is strongly associated with fetal sepsis due to congenital infections. A much less common variant on acute villitis pattern has been described with additional presence of bacteria in the fetal capillaries of the chorionic villi. We describe the spectrum of bacteria that would induce this unique pattern. The histological archives were searched from 2 institutions for cases with intravascular bacteria present in the villous capillaries of the placenta. Thirteen cases were identified, of which 11 cases had acute chorioamnionitis and all cases showed an acute villitis. Eight cases had Escherichia coli identified and 3 cases had Group B Streptococcus. All cases were associated with fetal death. In 9 cases, the mother showed signs of a significant infection including 1 maternal death. We conclude that finding intravascular bacteria is a serious complication of congenital infection with serious fetal and maternal sequela. |
"You need to take care of it like you take care of your soul": perceptions and behaviours related to mosquito net damage, care, and repair in Senegal
Loll DK , Berthe S , Faye SL , Wone I , Arnold B , Koenker H , Schubert J , Lo Y , Thwing J , Faye O , Weber R . Malar J 2014 13 (1) 322 BACKGROUND: Net care and repair behaviours are essential for prolonging the durability of long-lasting insecticidal nets. Increased net durability has implications for protection against malaria as well as cost savings from less frequent net distributions. This study investigated behaviours and motivations for net care and repair behaviours in Senegal with the aim of informing social and behaviour change communication (SBCC) programmes, using the Health Belief Model as a framework. METHODS: Data were collected from 114 participants in eight regions of Senegal. Participants were eligible for the study if they were at least 18 years old and if their household owned at least one net. These respondents included 56 in-depth interview respondents and eight focus groups with 58 participants. In addition, the qualitative data were supplemented with observational questionnaire data from a total of 556 sleeping spaces. Of these spaces, 394 had an associated net. RESULTS: Reported net care and repair behaviours and motivations varied substantially within this sample. Children and improper handling were seen as major sources of net damage and respondents often tried to prevent damage by storing nets when not in use. Washing was seen as an additional method of care, but practices for washing varied and may have been damaging to nets in some cases. Participants mentioned a sense of pride of having a net in good condition and the uncertainty around when they could expect another net distribution as motivations for net care. Net repair appeared to be a less common behaviour and was limited by the perspective that net degradation was inevitable and that repairs themselves could weaken nets. CONCLUSION: These findings can be understood using the Health Belief Model framework of perceived severity, perceived susceptibility, perceived barriers, perceived benefits, self-efficacy, and cues to action. This model can guide SBCC messages surrounding net care and repair to promote practices associated with net longevity. Such messages should promote the benefits of intact nets and provide tools for overcoming barriers to care and repair. |
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