Last data update: Jan 13, 2025. (Total: 48570 publications since 2009)
Records 1-30 (of 31 Records) |
Query Trace: Brostrom R[original query] |
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Strategies to strengthen COVID-19 vaccine uptake and improve vaccine equity in U.S. Territories and Freely Associated States during the first six months of vaccine rollout
Tippins A , Acevedo JC , Palomeque FS , Coy KC , Chadd P , Stowell D , Ademokun O , Apaisam C , Basilius M , Brostrom R , Collazo IOG , Encarnacion J , Gerena IC , Hancock T , Hunte-Ceasar T , Judicpa P , Leon-Guerrero M , Martinez M , Masunu Y , Pangelinan H , Parian E , Pedro D . Vaccine 2024 The eight U.S. territories and freely associated states (TFAS) have historically faced unique social and structural barriers in the implementation of vaccination programs due to geographic remoteness, a high prevalence of socioeconomic disparities, increasing prevalence of natural disasters, limited vaccine providers and clinics, difficulties with procurement and shipping, and difficulty tracking highly mobile populations. In the months leading up to emergency authorizations for the use of COVID-19 vaccines, the TFAS developed tailored vaccination strategies to ensure that key at-risk populations received timely vaccination, and successfully implemented these strategies during the first six months of the vaccine rollout. Subject matter experts supporting the Centers for Disease Control and Prevention's COVID-19 Response recognized the unique historical, geographic, social, and cultural dynamics for residents in the TFAS and worked with partners to prevent, detect, and respond to the pandemic in these jurisdictions. As a result of innovative partnerships and vaccine distribution strategies, vaccine equity was improved in the TFAS during the COVID-19 vaccine rollout. |
Comparison of tuberculin skin testing and interferon-γ release assays in predicting tuberculosis disease
Ayers T , Hill AN , Raykin J , Mohanty S , Belknap RW , Brostrom R , Khurana R , Lauzardo M , Miller TL , Narita M , Pettit AC , Pyan A , Salcedo KL , Polony A , Flood J . JAMA Netw Open 2024 7 (4) e244769 IMPORTANCE: Elimination of tuberculosis (TB) disease in the US hinges on the ability of tests to detect individual risk of developing disease to inform prevention. The relative performance of 3 available TB tests-the tuberculin skin test (TST) and 2 interferon-γ release assays (IGRAs; QuantiFERON-TB Gold In-Tube [QFT-GIT] and SPOT.TB [TSPOT])-in predicting TB disease development in the US remains unknown. OBJECTIVE: To compare the performance of the TST with the QFT-GIT and TSPOT IGRAs in predicting TB disease in high-risk populations. DESIGN, SETTING, AND PARTICIPANTS: This prospective diagnostic study included participants at high risk of TB infection (TBI) or progression to TB disease at 10 US sites between 2012 and 2020. Participants of any age who had close contact with a case patient with infectious TB, were born in a country with medium or high TB incidence, had traveled recently to a high-incidence country, were living with HIV infection, or were from a population with a high local prevalence were enrolled from July 12, 2012, through May 5, 2017. Participants were assessed for 2 years after enrollment and through registry matches until the study end date (November 15, 2020). Data analysis was performed in June 2023. EXPOSURES: At enrollment, participants were concurrently tested with 2 IGRAs (QFT-GIT from Qiagen and TSPOT from Oxford Immunotec) and the TST. Participants were classified as case patients with incident TB disease when diagnosed more than 30 days from enrollment. MAIN OUTCOMES AND MEASURES: Estimated positive predictive value (PPV) ratios from generalized estimating equation models were used to compare test performance in predicting incident TB. Incremental changes in PPV were estimated to determine whether predictive performance significantly improved with the addition of a second test. Case patients with prevalent TB were examined in sensitivity analysis. RESULTS: A total of 22 020 eligible participants were included in this study. Their median age was 32 (range, 0-102) years, more than half (51.2%) were male, and the median follow-up was 6.4 (range, 0.2-8.3) years. Most participants (82.0%) were born outside the US, and 9.6% were close contacts. Tuberculosis disease was identified in 129 case patients (0.6%): 42 (0.2%) had incident TB and 87 (0.4%) had prevalent TB. The TSPOT and QFT-GIT assays performed significantly better than the TST (PPV ratio, 1.65 [95% CI, 1.35-2.02] and 1.47 [95% CI, 1.22-1.77], respectively). The incremental gain in PPV, given a positive TST result, was statistically significant for positive QFT-GIT and TSPOT results (1.64 [95% CI, 1.40-1.93] and 1.94 [95% CI, 1.65-2.27], respectively). CONCLUSIONS AND RELEVANCE: In this diagnostic study assessing predictive value, IGRAs demonstrated superior performance for predicting incident TB compared with the TST. Interferon-γ release assays provided a statistically significant incremental improvement in PPV when a positive TST result was known. These findings suggest that IGRA performance may enhance decisions to treat TBI and prevent TB. |
TB-free Ebeye: Results from integrated TB and noncommunicable disease case finding in Ebeye, Marshall Islands
Brostrom RJ , Largen A , Nasa JN , Jeadrik G , Yamada S , Yadav S , Ko E , Warkentin JV , Chorba TL . J Clin Tuberc Other Mycobact Dis 2024 35 100418 BACKGROUND: Tuberculosis (TB) incidence rates in the Republic of the Marshall Islands are among the highest in the world, 480/100,000 in 2017. In response, the Health Ministry completed islandwide screening in Ebeye Island in 2017. METHODS: Participants were interviewed to obtain TB history, exposures, and symptoms. TB assessment included chest radiography with sputum collection for GeneXpert® MTB-RIF if indicated. TB diagnosis was made by consensus of visiting TB experts. Participants were also screened for Hansen's disease (HD) and diabetes mellitus (DM). For persons aged ≥21 years, blood pressure, cholesterol, and blood glucose were assessed. RESULTS: A total of 5,166 persons (90.0 % of target population) completed screening leading to the identification of 39 new cases of TB (755/100,000) and 14 persons with HD (270/100,000). DM was detected in 1,096 persons (27 %), including in 351 persons not previously diagnosed. The rate of hypertension was 61 % and of hypercholesterolemia was 15 %. New or prevalent TB diagnosis was associated with newly diagnosed or history of DM (aOR 4.68, 2.15-10.20). CONCLUSIONS: In Ebeye, an integrated TB screening campaign found TB, HD, DM, and hypertension. TB and DM were strongly associated. |
Patient characteristics during early transmission of SARS-CoV-2, Palau, January 13-February 24, 2022
Eilers B , Adelbai-Fraser MD , Collado JR , Van Dyke M , Firestone M , Guinn AS , Dillon MT , Brostrom R , Kinzer MH , Muñoz N , Okumura K , Brown V , Ademokun O , Udui R , Uherbelau GJ , Hancock WT . Emerg Infect Dis 2023 29 (9) 1939-1941 Palau had no reported evidence of COVID-19 community spread until January 2022. We chart reviewed hospitalized patients who had a positive SARS-CoV-2 test result during early community transmission. Booster vaccinations and early outpatient treatment decreased hospitalizations. Inadequate hospital infection control practices contributed to iatrogenic COVID-19 and preventable deaths. |
Outbreak of multidrug-resistant tuberculosis - Kansas, 2021-2022
Groenweghe E , Swensson L , Winans KD , Griffin P , Haddad MB , Brostrom RJ , Tuckey D , Lam CK , Armitige LY , Seaworth BJ , Corriveau EA . MMWR Morb Mortal Wkly Rep 2023 72 (35) 957-960 An outbreak of multidrug-resistant (MDR) tuberculosis (TB) involved 13 persons in four households in a low-income, under-resourced urban Kansas community during November 2021-November 2022. A majority of the seven adults identified in the Kansas outbreak were born outside the United States in a country that had experienced an MDR TB outbreak with the same genotype during 2007-2009, whereas most of the six children in the Kansas outbreak were U.S.-born. Prompt identification, evaluation, and treatment of persons with MDR TB and their contacts is essential to limiting transmission. |
COVID-19 in the US-affiliated Pacific Islands: A timeline of events and lessons learned from March 2020-November 2022
Cash McGinley HL , Hancock WT , Kern-Allely S , Jenssen M , Chutaro E , Camacho J , Judicpa P , Okumura K , Muñoz N , Ademokun OM , Brostrom R . PLOS Glob Public Health 2023 3 (8) e0002052 The US-Affiliated Pacific Islands (USAPIs) experience many health disparities, including high rates of non-communicable disease and limited health resources, making them particularly vulnerable when SARS-CoV-2 began circulating globally in early 2020. Therefore, many USAPIs closed their borders early during the COVID-19 pandemic to give them more time to prepare for community transmission. Routine virtual meetings were established and maintained throughout the pandemic to support preparedness and response efforts and to share information among USAPIs and support partners. Data collected from these regular virtual meetings were gathered and disseminated through routine regional situational reports. These situational reports from March 27, 2020 to November 25, 2022 were reviewed to develop a quantitative dataset with qualitative notes that were used to summarize the COVID-19 response in the USAPIs. The initial surges of COVID-19 in the USAPIs ranged from August 2020 in Guam to August 2022 in the Federated States of Micronesia. This prolonged time between initial surges in the region was due to varying approaches regarding travel requirements, including fully closed borders, repatriation efforts requiring pre-travel quarantine and testing, quarantine requirements upon arrival only, and vaccine mandates. Delaying community transmission allowed USAPIs to establish testing capacity, immunize large proportions of their populations, and use novel COVID-19 therapeutics to reduce severe disease and mortality. Other essential components to support the USAPI regional COVID-19 response efforts included strong partnership and collaboration, regional information sharing and communication efforts, and trust in health leadership among community members. Valuable lessons learned from the USAPIs during the COVID-19 pandemic can be used to continue to strengthen systems within the region and better prepare for future public health emergencies. |
Tuberculosis among native Hawaiian and other Pacific Islander persons: United States and U.S.-affiliated Pacific Islands, 2010-2019
Deutsch-Feldman M , Springer YP , Felix D , Tsang CA , Brostrom R , Haddad M . Health Equity 2022 6 (1) 476-484 BACKGROUND: In recent years, tuberculosis (TB) incidence in the United States has declined overall but remained high among Native Hawaiian and Other Pacific Islander (NH/PI) persons. Few studies have examined the epidemiology of TB among NH/PI persons, particularly in the U.S.-Affiliated Pacific Islands (USAPI). We describe TB incidence and characteristics of NH/PI patients during 2010-2019. METHODS: We used data from the National Tuberculosis Surveillance System to characterize TB cases reported among NH/PI persons born in the 50 U.S. states (defined to include District of Columbia) and the USAPI. We calculated annual TB incidence among NH/PI patients, stratified by place of birth (U.S. states or USAPI). Using Asian persons born outside the United States-persons historically grouped with NH/PI persons as one racial category-as the reference, we compared demographic, clinical, and socio-behavioral characteristics of NH/PI TB patients. RESULTS: During 2010-2019, 4359 TB cases were reported among NH/PI patients born in the U.S. states (n=205) or the USAPI (n=4154). Median annual incidence per 100,000 persons was 6.5 cases (persons born in the U.S. states) and 150.7 cases (persons born in the USAPI). The proportion of TB patients aged <15 years was higher among NH/PI persons (U.S. states: 54%, USAPI: 24%) than among Asian persons born outside the United States (1%). CONCLUSIONS: TB incidence among NH/PI persons is high, particularly among persons born in the USAPI, emphasizing the need to enhance TB prevention strategies in these communities. Interventions should be tailored toward those who experience the highest risk, including NH/PI children and adolescents. |
SARS-CoV-2 Transmission Associated with an Indoor Music Event That Required Proof of Full Vaccination Against COVID-19 Prior to Entry-Seattle, July 2021.
Roskosky M , Moni G , Kawakami V , Lambert J , Brostrom-Smith C , Whitney H , Phu A , Look J , Pallickaparambil A , Kay M , Duchin J . Clin Infect Dis 2022 75 S251-S253 In July 2021, Public Health - Seattle and King County-investigated a COVID-19 outbreak at an indoor event intended for fully-vaccinated individuals, revealing unvaccinated staff, limited masking, poor ventilation, and overcrowding. Supporting businesses to develop and implement comprehensive COVID-19 prevention plans is essential for reducing spread in these settings. Word Count: 48/50. |
Post-arrival evaluation of immigrant and refugee children in the USA with latent tuberculosis infection diagnosed overseas, 20072019
Wang Z , Posey DL , Brostrom RJ , Morris SB , Marano N , Phares CR . J Pediatr 2022 245 149-157 e1 OBJECTIVE: To assess outcomes from the U.S. post-arrival evaluation of newly arrived immigrant and refugee children aged 2-14 years who were diagnosed with latent tuberculosis infection (LTBI) during a required overseas medical examination. STUDY DESIGN: We compared overseas and U.S. interferon-γ release assay (IGRA)/tuberculin skin test (TST) results and LTBI diagnosis; assessed post-arrival LTBI treatment initiation and completion; and evaluated the impact of switching from TST to IGRA to detect Mycobacterium tuberculosis (Mtb) infection overseas. RESULTS: 73,014 children were diagnosed with LTBI overseas and arrived in the United States during 2007‒2019. In the United States, 45,939 (62.9%) completed, and 1,985 (2.7%) initiated but did not complete a post-arrival evaluation. Among these 47,924 children, 30,360 (63.4%) were retested for Mtb infection. For 17,996 children with a positive overseas TST, 73.8% were negative when retested by IGRA. For 1,051 children with a positive overseas IGRA, 58.0% were negative when retested by IGRA. Overall, among children who completed a post-arrival evaluation, 18,544 (40.4%) were evaluated as having no evidence of TB infection, and 25,919 (56.4%) had their overseas LTBI diagnosis confirmed. Among the latter, 17,229 (66.5%) initiated and 9,185 (35.4%) completed LTBI treatment. CONCLUSIONS: Requiring IGRA testing overseas could more effectively identify children who will benefit from LTBI treatment. However, IGRA reversions may occur, highlighting the need for individualized assessment for risk of infection, progression, and poor outcome when making diagnostic and treatment decisions. Strategies are needed to increase the proportions receiving a post-arrival evaluation and completing LTBI treatment. |
Evaluation of Sputum-Culture Results for Tuberculosis Patients in the United States-Affiliated Pacific Islands
Ghosh S , Felix D , Kammerer JS , Talarico S , Brostrom R , Starks A , Silk B . Asia Pac J Public Health 2021 34 10105395211060119 Sputum-culture confirmation guides tuberculosis (TB) diagnosis and patient management but has previously been reported to be low in the US-Affiliated Pacific Islands (USAPI). We evaluated factors associated with positive sputum-culture results by analyzing TB case surveillance and laboratory data, including sputa quality and quantity for diagnostic specimens from the USAPI. A lower proportion of sputum specimens were reported as culture positive from the USAPI (42%), compared with Hawaii (58%) and the United States (55%). Few (3%) sputa collected from TB patients in the USAPI had both optimal quality and quantity; 40% had optimal quality (mucoid), and 7% had optimal quantity (>5 mL). Suboptimal sputum specimen quality and quantity contributed to fewer sputum-culture positive results in the USAPI. Improving sputum collection and handling might lead to more culture positive results and ultimately improve patient care and TB control in USAPI. |
Evaluation of point-of-care algorithms to detect diabetes during screening for latent TB infection
Largen A , Ayala A , Khurana R , Katz DJ , Venkatappa TK , Brostrom R . Int J Tuberc Lung Dis 2021 25 (7) 547-553 BACKGROUND: Individuals with both diabetes mellitus (DM) and TB infection are at higher risk of progressing to TB disease.OBJECTIVE: To determine DM prevalence in populations at high risk for latent TB infection (LTBI) and to identify the most accurate point-of-care (POC) method for DM screening.METHODS: Adults aged ≥25 years were recruited at health department clinics in Hawaii and Arizona, USA, and screened for LTBI and DM. Screening methods for DM included self-report, random blood glucose (RBG), and POC hemoglobin A1c (HbA1c). Using HbA1c ≥6.5% or self-reported history as the gold standard for DM, we compared test strategies to determine the most accurate method while keeping test costs low.RESULTS: Of 472 participants, 13% had DM and half were unaware of their diagnosis. Limiting HbA1c testing to ages ≥30 years with a RBG level of 120-180 mg/dL helped identify most participants with DM (sensitivity 85%, specificity 99%) at an average test cost of US$2.56 per person compared to US$9.56 per person using HbA1c for all patients.CONCLUSION: Self-report was insufficient to determine DM status because many participants were previously undiagnosed. Using a combination of POC RBG and HbA1c provided an inexpensive option to assess DM status in persons at high risk for LTBI. |
Impact of T-Cell Xtend on T-SPOT.TB Assay in High-Risk Individuals after Delayed Blood Sample Processing
Feng PJ , Wu Y , Ho CS , Chinna L , Whelen AC , Largen A , Brostrom R , Reves R , Belknap R , Cattamanchi A , Banaei N . J Clin Microbiol 2021 59 (5) T-SPOT®.TB (T-SPOT) is an interferon-gamma release assay (IGRA) used to detect infection with Mycobacterium tuberculosis based on the number of spot-forming T-cells; however, delays in sample processing have been shown to reduce the number of these spots that are detected following laboratory processing. Adding T-Cell Xtend (XT) into blood samples before processing reportedly extends the amount of time allowed between blood collection and processing up to 32 hours. In this study, paired blood samples from 306 adolescents and adults at high risk for latent tuberculosis (TB) infection (LTBI) or progression to TB disease were divided into three groups: 1) early processing (∼4.5 hours after collection) with and without XT, 2) delayed processing (∼24 hours after collection) with and without XT, and 3) early processing without XT and delayed processing with XT. The participants' paired samples were processed at a local laboratory and agreement of qualitative and quantitative results were assessed. The addition of XT did not consistently increase or decrease the number of spots. In groups 1, 2, and 3, samples processed with XT had 13% (10/77), 28.0% (30/107) and 24.6% (30/122), respectively, more spots while 33.8% (26/77), 26.2% (28/107), and 38.5% (47/122) had less spots compared with samples processed without XT. The findings suggest that XT does not reliably mitigate the loss of spot-forming T-cells in samples with processing delay. |
Signs, Symptoms, and Comorbidities Associated With Onset and Prognosis of COVID-19 in a Nursing Home.
Tobolowsky FA , Bardossy AC , Currie DW , Schwartz NG , Zacks RLT , Chow EJ , Dyal JW , Ali H , Kay M , Duchin JS , Brostrom-Smith C , Clark S , Sykes K , Jernigan JA , Honein MA , Clark TA , Stone ND , Reddy SC , Rao AK . J Am Med Dir Assoc 2021 22 (3) 498-503 BACKGROUND: Effective halting of outbreaks in skilled nursing facilities (SNFs) depends on the earliest recognition of cases. We assessed confirmed COVID-19 cases at an SNF impacted by COVID-19 in the United States to identify early indications of COVID-19 infection. METHODS: We performed retrospective reviews of electronic health records for residents with laboratory-confirmed SARS-CoV-2 during February 28-March 16, 2020. Records were abstracted for comorbidities, signs and symptoms, and illness outcomes during the 2 weeks before and after the date of positive specimen collection. Relative risks (RRs) of hospitalization and death were calculated. RESULTS: Of the 118 residents tested among approximately 130 residents from Facility A during February 28-March 16, 2020, 101 (86%) were found to test positive for SARS-CoV-2. At initial presentation, about two-thirds of SARS-CoV-2-positive residents had an abnormal vital sign or change in oxygen status. Most (90.2%) symptomatic residents had elevated temperature, change in mental status, lethargy, change in oxygen status, or cough; 9 (11.0%) did not have fever, cough, or shortness of breath during their clinical course. Those with change in oxygen status had an increased relative risk (RR) of 30-day mortality [51.1% vs 29.7%, RR 1.7, 95% confidence interval (CI) 1.0-3.0]. RR of hospitalization was higher for residents with underlying hepatic disease (1.6, 95% CI 1.1-2.2) or obesity (1.5, 95% CI 1.1-2.1); RR of death was not statistically significant. CONCLUSIONS AND IMPLICATIONS: Our findings reinforce the critical role that monitoring of signs and symptoms can have in identifying COVID-19 cases early. SNFs should ensure they have a systematic approach for responding to abnormal vital signs and oxygen saturation and consider ensuring common signs and symptoms identified in Facility A are among those they monitor. |
Presymptomatic SARS-CoV-2 Infections and Transmission in a Skilled Nursing Facility.
Arons MM , Hatfield KM , Reddy SC , Kimball A , James A , Jacobs JR , Taylor J , Spicer K , Bardossy AC , Oakley LP , Tanwar S , Dyal JW , Harney J , Chisty Z , Bell JM , Methner M , Paul P , Carlson CM , McLaughlin HP , Thornburg N , Tong S , Tamin A , Tao Y , Uehara A , Harcourt J , Clark S , Brostrom-Smith C , Page LC , Kay M , Lewis J , Montgomery P , Stone ND , Clark TA , Honein MA , Duchin JS , Jernigan JA . N Engl J Med 2020 382 (22) 2081-2090 BACKGROUND: Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection can spread rapidly within skilled nursing facilities. After identification of a case of Covid-19 in a skilled nursing facility, we assessed transmission and evaluated the adequacy of symptom-based screening to identify infections in residents. METHODS: We conducted two serial point-prevalence surveys, 1 week apart, in which assenting residents of the facility underwent nasopharyngeal and oropharyngeal testing for SARS-CoV-2, including real-time reverse-transcriptase polymerase chain reaction (rRT-PCR), viral culture, and sequencing. Symptoms that had been present during the preceding 14 days were recorded. Asymptomatic residents who tested positive were reassessed 7 days later. Residents with SARS-CoV-2 infection were categorized as symptomatic with typical symptoms (fever, cough, or shortness of breath), symptomatic with only atypical symptoms, presymptomatic, or asymptomatic. RESULTS: Twenty-three days after the first positive test result in a resident at this skilled nursing facility, 57 of 89 residents (64%) tested positive for SARS-CoV-2. Among 76 residents who participated in point-prevalence surveys, 48 (63%) tested positive. Of these 48 residents, 27 (56%) were asymptomatic at the time of testing; 24 subsequently developed symptoms (median time to onset, 4 days). Samples from these 24 presymptomatic residents had a median rRT-PCR cycle threshold value of 23.1, and viable virus was recovered from 17 residents. As of April 3, of the 57 residents with SARS-CoV-2 infection, 11 had been hospitalized (3 in the intensive care unit) and 15 had died (mortality, 26%). Of the 34 residents whose specimens were sequenced, 27 (79%) had sequences that fit into two clusters with a difference of one nucleotide. CONCLUSIONS: Rapid and widespread transmission of SARS-CoV-2 was demonstrated in this skilled nursing facility. More than half of residents with positive test results were asymptomatic at the time of testing and most likely contributed to transmission. Infection-control strategies focused solely on symptomatic residents were not sufficient to prevent transmission after SARS-CoV-2 introduction into this facility. |
Asymptomatic and Presymptomatic SARS-CoV-2 Infections in Residents of a Long-Term Care Skilled Nursing Facility - King County, Washington, March 2020.
Kimball A , Hatfield KM , Arons M , James A , Taylor J , Spicer K , Bardossy AC , Oakley LP , Tanwar S , Chisty Z , Bell JM , Methner M , Harney J , Jacobs JR , Carlson CM , McLaughlin HP , Stone N , Clark S , Brostrom-Smith C , Page LC , Kay M , Lewis J , Russell D , Hiatt B , Gant J , Duchin JS , Clark TA , Honein MA , Reddy SC , Jernigan JA . MMWR Morb Mortal Wkly Rep 2020 69 (13) 377-381 Older adults are susceptible to severe coronavirus disease 2019 (COVID-19) outcomes as a consequence of their age and, in some cases, underlying health conditions (1). A COVID-19 outbreak in a long-term care skilled nursing facility (SNF) in King County, Washington that was first identified on February 28, 2020, highlighted the potential for rapid spread among residents of these types of facilities (2). On March 1, a health care provider at a second long-term care skilled nursing facility (facility A) in King County, Washington, had a positive test result for SARS-CoV-2, the novel coronavirus that causes COVID-19, after working while symptomatic on February 26 and 28. By March 6, seven residents of this second facility were symptomatic and had positive test results for SARS-CoV-2. On March 13, CDC performed symptom assessments and SARS-CoV-2 testing for 76 (93%) of the 82 facility A residents to evaluate the utility of symptom screening for identification of COVID-19 in SNF residents. Residents were categorized as asymptomatic or symptomatic at the time of testing, based on the absence or presence of fever, cough, shortness of breath, or other symptoms on the day of testing or during the preceding 14 days. Among 23 (30%) residents with positive test results, 10 (43%) had symptoms on the date of testing, and 13 (57%) were asymptomatic. Seven days after testing, 10 of these 13 previously asymptomatic residents had developed symptoms and were recategorized as presymptomatic at the time of testing. The reverse transcription-polymerase chain reaction (RT-PCR) testing cycle threshold (Ct) values indicated large quantities of viral RNA in asymptomatic, presymptomatic, and symptomatic residents, suggesting the potential for transmission regardless of symptoms. Symptom-based screening in SNFs could fail to identify approximately half of residents with COVID-19. Long-term care facilities should take proactive steps to prevent introduction of SARS-CoV-2 (3). Once a confirmed case is identified in an SNF, all residents should be placed on isolation precautions if possible (3), with considerations for extended use or reuse of personal protective equipment (PPE) as needed (4). |
COVID-19 in a Long-Term Care Facility - King County, Washington, February 27-March 9, 2020.
McMichael TM , Clark S , Pogosjans S , Kay M , Lewis J , Baer A , Kawakami V , Lukoff MD , Ferro J , Brostrom-Smith C , Riedo FX , Russell D , Hiatt B , Montgomery P , Rao AK , Currie DW , Chow EJ , Tobolowsky F , Bardossy AC , Oakley LP , Jacobs JR , Schwartz NG , Stone N , Reddy SC , Jernigan JA , Honein MA , Clark TA , Duchin JS . MMWR Morb Mortal Wkly Rep 2020 69 (12) 339-342 On February 28, 2020, a case of coronavirus disease (COVID-19) was identified in a woman resident of a long-term care skilled nursing facility (facility A) in King County, Washington.* Epidemiologic investigation of facility A identified 129 cases of COVID-19 associated with facility A, including 81 of the residents, 34 staff members, and 14 visitors; 23 persons died. Limitations in effective infection control and prevention and staff members working in multiple facilities contributed to intra- and interfacility spread. COVID-19 can spread rapidly in long-term residential care facilities, and persons with chronic underlying medical conditions are at greater risk for COVID-19-associated severe disease and death. Long-term care facilities should take proactive steps to protect the health of residents and preserve the health care workforce by identifying and excluding potentially infected staff members and visitors, ensuring early recognition of potentially infected patients, and implementing appropriate infection control measures. |
Epidemiology of Covid-19 in a Long-Term Care Facility in King County, Washington.
McMichael TM , Currie DW , Clark S , Pogosjans S , Kay M , Schwartz NG , Lewis J , Baer A , Kawakami V , Lukoff MD , Ferro J , Brostrom-Smith C , Rea TD , Sayre MR , Riedo FX , Russell D , Hiatt B , Montgomery P , Rao AK , Chow EJ , Tobolowsky F , Hughes MJ , Bardossy AC , Oakley LP , Jacobs JR , Stone ND , Reddy SC , Jernigan JA , Honein MA , Clark TA , Duchin JS . N Engl J Med 2020 382 (21) 2005-2011 BACKGROUND: Long-term care facilities are high-risk settings for severe outcomes from outbreaks of Covid-19, owing to both the advanced age and frequent chronic underlying health conditions of the residents and the movement of health care personnel among facilities in a region. METHODS: After identification on February 28, 2020, of a confirmed case of Covid-19 in a skilled nursing facility in King County, Washington, Public Health-Seattle and King County, aided by the Centers for Disease Control and Prevention, launched a case investigation, contact tracing, quarantine of exposed persons, isolation of confirmed and suspected cases, and on-site enhancement of infection prevention and control. RESULTS: As of March 18, a total of 167 confirmed cases of Covid-19 affecting 101 residents, 50 health care personnel, and 16 visitors were found to be epidemiologically linked to the facility. Most cases among residents included respiratory illness consistent with Covid-19; however, in 7 residents no symptoms were documented. Hospitalization rates for facility residents, visitors, and staff were 54.5%, 50.0%, and 6.0%, respectively. The case fatality rate for residents was 33.7% (34 of 101). As of March 18, a total of 30 long-term care facilities with at least one confirmed case of Covid-19 had been identified in King County. CONCLUSIONS: In the context of rapidly escalating Covid-19 outbreaks, proactive steps by long-term care facilities to identify and exclude potentially infected staff and visitors, actively monitor for potentially infected patients, and implement appropriate infection prevention and control measures are needed to prevent the introduction of Covid-19. |
Notes from the Field: Clinical Klebsiella pneumoniae Isolate with Three Carbapenem Resistance Genes Associated with Urology Procedures - King County, Washington, 2018.
Vannice K , Benoliel E , Kauber K , Brostrom-Smith C , Montgomery P , Kay M , Walters M , Tran M , D'Angeli M , Duchin J . MMWR Morb Mortal Wkly Rep 2019 68 (30) 667-668 On December 31, 2018, Public Health — Seattle & King County (PHSKC) was notified by the Antibiotic Resistance Laboratory Network regarding a carbapenem-resistant Klebsiella pneumoniae (CR-Kp) isolate cultured from the urinary tract in a man aged 65 years. The specimen was collected on December 17, 2018. It tested positive for carbapenemase activity by the modified carbapenem inactivation method and positive for genes encoding the carbapenemases New Delhi metallo-beta-lactamase, Verona integron-encoded metallo-beta-lactamase, and OXA-48–type beta-lactamase, by polymerase chain reaction. Antimicrobial susceptibility testing by broth microdilution showed resistance to 15 antibiotics tested* but low minimum inhibitory concentrations (MIC) to colistin (MIC ≤0.25) and tigecycline (MIC = 1). CDC recommends a public health response when organisms with emerging forms of antibiotic resistance, such as the metallo-beta-lactamases this isolate harbored, are identified† because such organisms are often difficult to treat and have the potential to spread rapidly in health care settings (1). |
Notes from the Field: Meningeal and pulmonary tuberculosis on a commercial fishing vessel - Hawaii, 2017
Imada EK , Roberson EK , Goswami ND , Brostrom RJ , Moser K , Tardivel K . MMWR Morb Mortal Wkly Rep 2019 68 (24) 554-555 In December 2016, U.S. Customs and Border Protection notified the CDC Honolulu Quarantine Station of a crewman on a commercial fishing vessel who was hospitalized with suspected tuberculosis (TB); the crewman, in his mid-30s, was unconsciousness, intubated, and dependent upon mechanical ventilation to maintain his respiratory status. He was a native of a high TB-burden country (one with TB incidence exceeding 10 cases per 100,000 population per year)* in the Pacific region. Nine days earlier, he had been hospitalized in Hawaii following a 1-month history of headache, fever, night sweats, chills, fatigue, weight loss, breathing difficulties, and cough and recent onset of abdominal pain, vomiting, dizziness, and blurred vision. Brain computerized tomography (CT) and magnetic resonance imaging scans showed lesions in the left basal ganglia and left temporal lobe; chest CT showed multiple bilateral lung opacities with central cavitation. Pathology results from a lung biopsy demonstrated acid-fast bacilli with molecular and culture tests positive for Mycobacterium tuberculosis complex, susceptible to all first-line drugs. Cerebrospinal fluid demonstrated low glucose (23 mg/dL), elevated protein (247 mg/dL), and elevated white blood cell count (298 cells/uL) with a relative lymphocytic predominance (50%), consistent with TB meningitis. Testing for human immunodeficiency virus infection was negative, and the patient had no medical comorbidities. The Hawaii Department of Health (Hawaii DOH) was contacted to assist with the investigation. |
Higher rates of tuberculosis among class B1 Filipino immigrants to Hawaii compared to nationwide, 2010-2014
Schmit KM , Brostrom R , Largen A , Pyan A , Wang Z , Mase S , Morris S . J Immigr Minor Health 2019 21 (6) 1300-1305 BACKGROUND: Immigrants to the United States from countries with a high burden of tuberculosis (TB) who have abnormal chest radiographs but negative sputum cultures during pre-immigration screening (TB Class B1) have a high risk of being diagnosed with TB disease within 1 year of arrival. METHODS: Using 2010-2014 national surveillance data, we compared proportions of Class B1 Filipino immigrants who received a diagnosis of TB disease within 1 year of arrival to Hawaii to proportions in other U.S. states (not including Hawaii) using chi-squared tests. RESULTS: In Hawaii, 40/1190 (3.4%) of Class B1 Filipino immigrants to Hawaii received a diagnosis of TB disease within 1 year of arrival compared with 220/16,035 (1.4%) nationwide (P < .01). CONCLUSIONS: During 2010-2014, the percentage of recent Class B1 Filipino immigrants in Hawaii with TB disease diagnosed within 1 year of arrival was over twice that as nationwide. |
Introduction and evaluation of multidrug-resistant tuberculosis supplemental surveillance in the United States
Belanger A , Morris SB , Brostrom R , Yost D , Goswami N , Oxtoby M , Moore M , Westenhouse J , Barry PM , Shah NS . J Clin Tuberc Other Mycobact Dis 2019 15 100090 The current tuberculosis (TB) case reporting system for the United States, the Report of Verified Case of TB (RVCT), has minimal capture of multidrug-resistant (MDR) TB treatment and adverse events. Data were abstracted in five states using the form for 13 MDR TB patients during 2012–2015. The Centers for Disease Control and Prevention Guidelines for Evaluating Public Health Surveillance Systems were used to evaluate attributes of the form. Unstructured interviews with pilot sites and stakeholders provided qualitative feedback. The form was acceptable, simple, stable, representative, and provided high-quality data but was not flexible or timely. For the 13 patients on whom data were collected, the median duration of treatment with an injectable medication was 216 days (IQR 203–252). Six (46%) patients reported a side effect requiring a medication change and eight (62%) had a side effect present at treatment completion. A standardized MDR TB supplemental surveillance form was well received by stakeholders whose feedback was critical to making modifications. The finalized form will be implemented nationally in 2020 and will provide MDR TB treatment and morbidity data in the United States to help ensure patients with MDR TB receive the most effective treatment regimens with the least toxic drugs. |
Increasing prevalence of nontuberculous mycobacteria in respiratory specimens from US-affiliated Pacific island jurisdictions
Lin C , Russell C , Soll B , Chow D , Bamrah S , Brostrom R , Kim W , Scott J , Bankowski MJ . Emerg Infect Dis 2018 24 (3) 485-491 Nontuberculous mycobacteria (NTM) respiratory infections represent a growing public health problem in many countries. However, there are limited published epidemiologic studies for the Western Pacific region. We reviewed respiratory specimens submitted to Diagnostic Laboratory Services in Hawaii, USA, for culture of Mycobacterium tuberculosis during August 2007-December 2011 to determine the NTM isolation rate. We observed a statistically significant increase in the rate of specimens with NTM isolated in respiratory culture (adjusted rate ratio per year 1.65, 95% CI 1.54-1.77; p<0.01). In contrast, the number of patients with respiratory cultures positive for M. tuberculosis showed no increase (adjusted rate ratio per year 0.98, 95% CI 0.94-1.01; p = 0.19). A 6-month subset of NTM isolates was identified by using a nucleic acid probe or 16S rRNA sequencing. M. avium complex and M. fortuitum were the most common NTM identified. |
Tuberculosis screening at a diabetes clinic in the Republic of the Marshall Islands
Trinidad RM , Brostrom R , Morello MI , Montgomery D , Thein CC , Gajitos ML , Heetderks A , Chorba T . J Clin Tuberc Other Mycobact Dis 2016 5 4-7 Setting Tuberculosis (TB) and diabetes mellitus (DM) are prominent public health problems in the Republic of the Marshall Islands, a small island nation with high rates of tuberculosis and diabetes. Objective Evaluate the rate of active and latent TB in a Pacific Island DM clinic. Design In one DM clinic on the island of Ebeye, 213 adult patients aged 27–86 years completed tuberculin skin testing and TB work-up between April 2010 and March 2012. Results Screening for TB led to the diagnosis of 77 patients with TB infection and 11 patients with TB disease. From these data, the prevalence of TB disease among DM patients in the clinic exceeded 5% (95% CI 2.2%–8.1%). All patients who completed TB screening were at high risk of TB disease, and those with DM aged ≤ 50 years had a higher risk of TB disease than those with DM over age 50 (RR 3.1, C.I. 1.0–9.7, p = 0.05). Conclusion The experience at the Ebeye Diabetes Clinic demonstrates that screening DM patients for TB can identify significant rates of TB infection and TB disease, and should be considered for other settings with a high background TB incidence. Further assessment of TB risks should explore age, gender, and level of diabetes control. |
Insights in public health: Eliminating tuberculosis in Hawai'i: Yesterday, today, and tomorrow
Brostrom R , Wasserman G . Hawaii J Med Public Health 2016 75 (4) 117-20 The Hawai‘i Department of Health has actively engaged in tuberculosis (TB) control for more than 100 years. During that time, Hawai‘i has witnessed a remarkable decline in TB morbidity and mortality. New diagnostic tests and changing TB epidemiology warrant a change in our current approach to TB control. Currently, TB is a reportable condition under Hawai‘i Administrative Rules (HAR), Title 11, Chapter 156. Updated HAR for TB screening are nearly complete and reflect best practices and priorities for TB control. These changes include use of a TB Risk Assessment Screening Questionnaire, a new State TB Clearance Form, and inclusion of interferon gamma release assay (IGRA) blood tests to identify individuals with TB infection.1 These improvements will affect the medical community and others who partner with the State of Hawai‘i Department of Health to provide quality TB screening. |
Pharmacokinetics and dosing of levofloxacin in children treated for active or latent multidrug-resistant tuberculosis, Federated States of Micronesia and Republic of the Marshall Islands
Mase SR , Jereb JA , Gonzalez D , Martin F , Daley CL , Fred D , Loeffler A , Menon L , Morris SB , Brostrom R , Chorba T , Peloquin CA . Pediatr Infect Dis J 2015 35 (4) 414-21 BACKGROUND: In the Federated States of Micronesia (FSM) and then the Republic of the Marshall Islands (RMI), levofloxacin pharmacokinetics (PK) were studied in children receiving directly observed once-daily regimens (10 mg/kg, age <5 years; 15 20 mg/kg, age ≤5 years) for either multidrug-resistant tuberculosis (MDR TB) disease or latent infection after MDR TB exposure, to inform future dosing strategies. METHODS: Blood samples were collected at 0 (RMI only), 1, 2, and 6 hours (50 children, aged 6 months to 15 years) after oral levofloxacin at >6 weeks of treatment. Clinical characteristics and levofloxacin Cmax, elimination half-life (t1/2), and area under the curve from 0 to 24 hours (AUC0-24 hours * microg/mL) were correlated to determine optimal dosage and to examine associations. Population PK and target attainment were modeled. With results from FSM, dosages were increased in RMI toward the target maximal drug concentration (Cmax) for Mycobacterium tuberculosis, 8-12 microg/ml. RESULTS: Cmax correlated linearly with per-weight dosage. Neither Cmax nor t1/2 was associated with gender, age, body mass index, concurrent medications, or pre-dose meals. At levofloxacin dosage of 15-20 mg/kg, Cmax ≥ 8 microg/ml was observed, and modeling corroborated a high target attainment across the ratio of the area under the free-concentration-versus-time curve to minimum inhibitory concentration (fAUCss,0-24/MIC) values. CONCLUSIONS: Levofloxacin dosage should be 15-20 mg/kg for Cmax ≥ 8 microg/ml and a high target attainment across fAUCss,0-24/MIC values in children ≥2 years of age. |
Diabetes and tuberculosis in the Pacific Islands region
Viney K , Brostrom R , Nasa J , Defang R , Kienene T . Lancet Diabetes Endocrinol 2014 2 (12) 932 We read with great interest the Series paper by Lönnroth and colleagues1 about tuberculosis and diabetes published in The Lancet Diabetes & Endocrinology. The Series paper focused on countries with the largest burden of tuberculosis and diabetes-associated tuberculosis, but did not mention the Pacific Island countries. Pacific Island countries generally have small population sizes, and we presume that this is the reason for the omission. | However, many of the 22 countries that comprise the Pacific Islands region have very high rates of type 2 diabetes (up to 37% prevalence in adults)2 and high rates of tuberculosis (up to 343 cases per 100 000 population).3 Seven of the world's top ten countries with the highest prevalence of diabetes are in the Pacific Islands region, with rates exceeding 25% in five island countries.2 Similarly, tuberculosis case notification rates are also high in selected Pacific Island countries, with the region also recording some of the highest tuberculosis rates in the world.3 Because the population sizes are small, the Pacific Islands region is often not prioritised by policy makers.4 | Regarding diabetes-associated tuberculosis, the Pacific Islands region should be highly prioritised for policy makers, programme managers, and researchers. With the use of original data (Viney K and Brostrom R, unpublished) we estimate that 25% of tuberculosis cases in Kiribati and 41% in the Marshall Islands are directly attributable to diabetes, rates that are much higher than other countries in Lönnroth and colleagues' Series paper.1 Additionally, the Pacific Islands region continues to pioneer in the development and implementation of useful clinical standards to manage and prevent tuberculosis and diabetes.5 We urge policy makers to recognise the important health problems in the Pacific Islands region, including the challenging work undertaken by Ministries of Health and technical agencies to improve patient outcomes for populations with this dual burden of disease. |
Mentorship for operational research capacity building: hands-on or hands-off?
Harries AD , Marais B , Kool B , Ram S , Kumar AM , Gounder S , Viney K , Brostrom R , Roseveare C , Bissell K , Reid AJ , Zachariah R , Hill PC . Public Health Action 2014 4 S56-8 Mentorship is a key feature of operational research training courses run by the International Union Against Tuberculosis and Lung Disease and Médecins Sans Frontières. During the recent South Pacific paper writing module, the faculty discussed 'hands-on' mentorship (direct technical assistance) vs. 'hands-off' mentorship (technical advice). This article explores the advantages and disadvantages of each approach. Our collective experience indicates that 'hands-on' mentorship is a valuable learning experience for the participant and a rewarding experience for the mentor. This approach increases the likelihood of successful course completion, including publishing a well written paper. However, mentors must allow participants to lead and take ownership of the paper, in keeping with a first author position. |
Screening adult tuberculosis patients for diabetes mellitus in Ebeye, Republic of the Marshall Islands
Nasa JN , Brostrom R , Ram S , Kumar AM , Seremai J , Hauma M , Paul IA , Langidrik JR . Public Health Action 2014 4 S50-2 A retrospective cohort study was conducted to evaluate the screening of adult TB patients for diabetes (DM) using glycated haemoglobin (HbA1C) in Ebeye, Republic of the Marshall Islands. Of 62 patients registered between July 2010 and December 2012, 28 (45%) had DM. The only significant difference in baseline characteristics between those with and those without DM was higher age in those with DM. Two-month sputum smears and cultures were also not different between the two groups. Despite the limited sample size, this study shows that screening TB patients for DM in Ebeye is feasible and worthwhile and that it should be continued. |
Treatment for LTBI in contacts of MDR-TB patients, Federated States of Micronesia, 2009-2012
Bamrah S , Brostrom R , Dorina F , Setik L , Song R , Kawamura LM , Heetderks A , Mase S . Int J Tuberc Lung Dis 2014 18 (8) 912-918 SETTING: Few studies have shown the operational feasibility, safety, tolerability, or outcomes of multi-drug-resistant latent tuberculous infection (MDR LTBI) treatment. After two simultaneous multidrug-resistant tuberculosis (MDR-TB) outbreaks in Chuuk, Federated States of Micronesia, infected contacts were offered a 12-month fluoroquinolone (FQ) based MDR LTBI treatment regimen. DESIGN: Between January 2009 and February 2012, 119 contacts of MDR-TB patients were followed using a prospective observational study design. After MDR-TB disease was excluded, 12 months of daily FQ-based preventive treatment of MDR LTBI was provided by directly observed therapy. RESULTS: Among the 119 infected contacts, 15 refused, while 104 began treatment for MDR LTBI. Of the 104 who initiated treatment, 93 (89%) completed treatment, while 4 contacts discontinued due to adverse effects. None of the 104 contacts who undertook MDR LTBI treatment of any duration developed MDR-TB disease; however, 3 of 15 contacts who refused and 15 unidentified contacts developed MDR-TB disease. CONCLUSION: Providing treatment for MDR LTBI can be accomplished in a resource-limited setting, and contributed to preventing MDR-TB disease. The Chuuk TB program implemented treatment of MDR LTBI with an 89% completion rate. The MDR LTBI regimens were safe and well tolerated, and no TB cases occurred among persons treated for MDR LTBI. |
Describing the burden of non-communicable disease risk factors among adults with diabetes in Wallis and Futuna
Girin N , Brostrom R , Ram S , McKenzie J , Kumar AMV , Roseveare C . Public Health Action 2014 4 S39-S43 BACKGROUND: The South Pacific Territory of Wallis and Futuna has a high burden of non-communicable diseases (NCD): 18% of adults have diabetes mellitus (DM) and 87% are classified as overweight or obese. OBJECTIVE: To characterise the burden of additional World Health Organization (WHO) recognised NCD risk factors, such as smoking, obesity, high blood pressure, eating less than five fruit or vegetable servings per day and a sedentary lifestyle, among adults with DM. DESIGN: Re-analysis of cross-sectional data from a 2009 national survey. Odds ratios (ORs) and 95% confidence intervals (CIs) were calculated. RESULTS: Of 487 adults sampled, 87 (18%) had DM. Nearly 99% of individuals with DM had at least one additional NCD risk factor, and 62% had three or more concurrent NCD risk factors. Individuals with DM were more likely to be obese (OR 1.66, 95%CI 1.01-2.74) and had a much higher prevalence of high blood pressure (OR 3.02, 95%CI 1.87-4.86). CONCLUSION: DM is rarely identified in the absence of other NCD risk factors. We recommend an integrated approach to the management of DM and other NCD risk factors in routine care rather than a disease-specific approach. |
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