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Wang R, Rothman RE, Mohareb AM, Laeyendecker O, Cloherty GA, Quinn TC, Hsieh YH. High Burden of Undiagnosed Hepatitis B and Liver Disease in an Urban Emergency Department-Baltimore, 2020. Clin Gastroenterol Hepatol 2023; 21:2975-2977.e1. [PMID: 36372371 PMCID: PMC10172393 DOI: 10.1016/j.cgh.2022.10.033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Revised: 09/19/2022] [Accepted: 10/24/2022] [Indexed: 11/13/2022]
Affiliation(s)
- Richard Wang
- Department of Emergency Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Richard E Rothman
- Department of Emergency Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland; Division of Infectious Diseases, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Amir M Mohareb
- Medical Practice Evaluation Center, Massachusetts General Hospital, Boston, Massachusetts; Division of Infectious Disease, Massachusetts General Hospital, Boston, Massachusetts; Department of Medicine, Harvard Medical School, Boston, Massachusetts
| | - Oliver Laeyendecker
- Division of Infectious Diseases, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland; Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland; Division of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Baltimore, Maryland
| | | | - Thomas C Quinn
- Division of Infectious Diseases, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland; Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland; Division of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Baltimore, Maryland
| | - Yu-Hsiang Hsieh
- Department of Emergency Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland.
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Lyons MS, Chawarski MC, Rothman R, Whiteside L, Cowan E, Richardson LD, Hawk K, Tsui JI, Schwartz RP, O’Connor P, D’Onofrio G, Fiellin DA, Edelman EJ. Missed Opportunities for HIV and Hepatitis C Screening Among Emergency Department Patients With Untreated Opioid Use Disorder. J Addict Med 2023; 17:210-214. [PMID: 36170184 PMCID: PMC10023471 DOI: 10.1097/adm.0000000000001074] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVE We assessed the frequency of emergency department (ED) HIV and hepatitis C (HCV) screening in a high-risk cohort of ED patients with untreated opioid use disorder (OUD). METHODS This analysis used data from a prospective, observational study of English-speaking adults with untreated OUD enrolled from April 2017 to December 2018 in 4 urban, academic EDs. Two cohorts were defined for this analysis by self-reported negative/unknown status for HIV (cohort 1) and HCV (cohort 2). Sites featured structured screening programs throughout the entire enrollment period for HIV and during at least part of the enrollment period for HCV. We calculated the proportion tested for HIV and HCV during the study enrollment ED visit. RESULTS Among 394 evaluated ED patients, 328 of 394 (83.2%) were not tested for HIV or HCV and 244 of 393 (62.1%) lacked a usual medical care provider. In cohort 1, 375 reported negative or unknown HIV status; 59/375 (15.7%) overall and 33/218 (15.1%) of those reporting recent injection drug use were tested for HIV. In cohort 2, 231 reported negative of unknown HCV status; 22/231 (9.5%) overall and 9/98 (9.2%) of those reporting recent injection drug use were tested for HCV. The proportion tested by the ED ranged from 3% to 25% for HIV and 4% to 32% for HCV across study sites. CONCLUSIONS Emergency department HIV and HCV screening remains infrequent among patients with untreated OUD, including those who inject drugs, even in EDs committed to screening. Targeted HIV/HCV screening should be considered as an adjunct strategy until the ideal of universal screening is more fully achieved.
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Affiliation(s)
- Michael S. Lyons
- Department of Emergency Medicine, University of Cincinnati College of Medicine, Cincinnati, OH, USA
- Center for Addiction Research, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Marek C. Chawarski
- Department of Emergency Medicine, Yale School of Medicine, New Haven, CT, USA
- Department of Psychiatry, Yale School of Medicine, New Haven, CT, USA
| | - Richard Rothman
- Department of Emergency Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Lauren Whiteside
- Department of Emergency Medicine, University of Washington School of Medicine Seattle WA USA
| | - Ethan Cowan
- Department of Emergency Medicine, Icahn School of Medicine at Mount Sinai, NY, NY, USA
| | - Lynne D. Richardson
- Department of Emergency Medicine, Icahn School of Medicine at Mount Sinai, NY, NY, USA
- Institute for Health Equity Research, Icahn School of Medicine at Mount Sinai, NY, NY, USA
| | - Kathryn Hawk
- Department of Emergency Medicine, Yale School of Medicine, New Haven, CT, USA
| | - Judith I. Tsui
- Department of Medicine, University of Washington School of Medicine, Seattle, WA, USA
| | | | - Patrick O’Connor
- Program in Addiction Medicine, Department of Internal Medicine, Yale School of Medicine, New Haven, CT, USA
| | - Gail D’Onofrio
- Department of Emergency Medicine, Yale School of Medicine, New Haven, CT, USA
| | - David A. Fiellin
- Department of Emergency Medicine, Yale School of Medicine, New Haven, CT, USA
- Program in Addiction Medicine, Department of Internal Medicine, Yale School of Medicine, New Haven, CT, USA
- Center for Interdisciplinary Research on AIDS, Yale School of Public Health, New Haven, CT, USA
| | - E. Jennifer Edelman
- Program in Addiction Medicine, Department of Internal Medicine, Yale School of Medicine, New Haven, CT, USA
- Center for Interdisciplinary Research on AIDS, Yale School of Public Health, New Haven, CT, USA
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3
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Hyde Z, Roura R, Varanasi K, McGinn T, Evans J, Verschoore B, Yang C, Labrique A, Ricketts EP, Rothman RE, Latkin CA, Hsieh YH. Human-centered design development of mHealth patient-to-peer referral tool in the emergency department. Digit Health 2022; 8:20552076221143238. [PMID: 36544538 PMCID: PMC9761213 DOI: 10.1177/20552076221143238] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Accepted: 11/17/2022] [Indexed: 12/15/2022] Open
Abstract
Background Given the steady increase of emergency department (ED) visits related to opioid overdoses, this study aims to determine the design and usability of an ED-centered mHealth patient-to-peer referral prototype tool that allows patients to refer peers to comprehensive HIV/HCV and opioid misuse prevention services. Methods Two iterative focus group discussion (FDG) sessions and one use-case session were conducted. Eligible participants who were ≥18 years, had a history of injection drug use (IDU), and had utilized the ED in the past year were recruited through the distribution of flyers at the study institution, including the study ED. Human-centered design process was completed by using participant feedback on perceived utility, usability/accessibility, tool design, and clarity/readability to fine-tune prototype version and drive subsequent discussion sessions. Results Sixteen consented individuals participated in at least one of the sessions. Feedback revealed that participants favored the inclusion of the webpage link on the referral card as means to bypass QR code if needed, more descriptions highlighting the exact services offered, and the fact that no personal information was required to complete the referral process. The prototype underwent several adjustments between user-centered FDG sessions, which ultimately ended in including features such as an online webpage with educational videos, SMS text-message communication system, and QR code usage into the final patient-to-peer referral tool prototype. Conclusion The findings of this study suggest a human-centered designed patient-to-peer referral tool could be a feasible approach to linking community members at risk of IDU to HIV/HCV and opioid use-related preventive services from ED patients.
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Affiliation(s)
- Zak Hyde
- Department of Emergency Medicine, Johns Hopkins University School of
Medicine, Baltimore, MD, USA
| | - Raúl Roura
- Department of Emergency Medicine, Johns Hopkins University School of
Medicine, Baltimore, MD, USA
| | - Kesav Varanasi
- Department of Emergency Medicine, Johns Hopkins University School of
Medicine, Baltimore, MD, USA
| | - Tanner McGinn
- Department of Emergency Medicine, Johns Hopkins University School of
Medicine, Baltimore, MD, USA
| | - Julie Evans
- Department of Emergency Medicine, Johns Hopkins University School of
Medicine, Baltimore, MD, USA
| | - Benjamin Verschoore
- Department of Emergency Medicine, Johns Hopkins University School of
Medicine, Baltimore, MD, USA
| | - Cui Yang
- Department of Health, Behavior and Society,
Johns Hopkins
University Bloomberg School of Public
Health, Baltimore, MD, USA
| | - Alain Labrique
- Department of International Health, Johns Hopkins Bloomberg School
of Public Health, Baltimore, MD, USA
| | - Erin P Ricketts
- Department of Emergency Medicine, Johns Hopkins University School of
Medicine, Baltimore, MD, USA
| | - Richard E Rothman
- Department of Emergency Medicine, Johns Hopkins University School of
Medicine, Baltimore, MD, USA
| | - Carl A Latkin
- Department of Health, Behavior and Society,
Johns Hopkins
University Bloomberg School of Public
Health, Baltimore, MD, USA
| | - Yu-Hsiang Hsieh
- Department of Emergency Medicine, Johns Hopkins University School of
Medicine, Baltimore, MD, USA,Yu-Hsiang Hsieh, Johns Hopkins University
Department of Emergency Medicine, 5801 Smith Avenue, Suite 3220 Davis Building,
Baltimore, MD 21209, USA.
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4
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Hsieh YH, Rothman RE, Solomon SS, Anderson M, Stec M, Laeyendecker O, Lake IV, Fernandez RE, Dashler G, Mehta R, Kickler T, Kelen GD, Mehta SH, Cloherty GA, Quinn TC. A Tale of Three Pandemics – SARS-CoV-2, HCV, and HIV in an Urban Emergency Department in Baltimore, Maryland. Open Forum Infect Dis 2022; 9:ofac130. [PMID: 35392453 PMCID: PMC8982772 DOI: 10.1093/ofid/ofac130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Accepted: 03/11/2022] [Indexed: 11/13/2022] Open
Abstract
Background We sought to determine the prevalence and sociodemographic and clinical correlates of acute and convalescent severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), hepatitis C virus (HCV), and human immunodeficiency virus (HIV) infections among emergency department (ED) patients in Baltimore. Methods Remnant blood samples from 7450 unique patients were collected over 4 months in 2020 for SARS-CoV-2 antibody (Ab), HCV Ab, and HIV-1/2 antigen and Ab. Among them, 5012 patients were tested by polymerase chain reaction for SARS-CoV-2 based on clinical suspicion. Sociodemographics, ED clinical presentations, and outcomes associated with coinfections were assessed. Results Overall, 729 (9.8%) patients had SARS-CoV-2 (acute or convalescent), 934 (12.5%) HCV, 372 (5.0%) HIV infection, and 211 patients (2.8%) had evidence of any coinfection (HCV/HIV, 1.5%; SARS-CoV-2/HCV, 0.7%; SARS-CoV-2/HIV, 0.3%; SARS-CoV-2/HCV/HIV, 0.3%). The prevalence of SARS-CoV-2 (acute or convalescent) was significantly higher in those with HCV or HIV vs those without (13.6% vs 9.1%, P < .001). Key sociodemographic disparities (race, ethnicity, and poverty) and specific ED clinical characteristics were significantly correlated with having any coinfections vs no infection or individual monoinfection. Among those with HCV or HIV, aged 18–34 years, Black race, Hispanic ethnicity, and a cardiovascular-related chief complaint had a significantly higher odds of having SARS-CoV-2 (prevalence ratios: 2.02, 2.37, 5.81, and 2.07, respectively). Conclusions The burden of SARS-CoV-2, HCV, and HIV co-pandemics and their associations with specific sociodemographic disparities, clinical presentations, and outcomes suggest that urban EDs should consider implementing integrated screening and linkage-to-care programs for these 3 infections.
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Affiliation(s)
- Yu-Hsiang Hsieh
- Department of Emergency Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States
| | - Richard E Rothman
- Department of Emergency Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States
- Department of Medicine, Division of Infectious Diseases, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States
| | - Sunil S Solomon
- Department of Medicine, Division of Infectious Diseases, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, United States
| | | | - Michael Stec
- Abbott Laboratories, Abbott Park, IL, United States
| | - Oliver Laeyendecker
- Department of Medicine, Division of Infectious Diseases, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, United States
- Division of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Baltimore, Maryland, United States
| | - Isabel V Lake
- Department of Emergency Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States
| | - Reinaldo E Fernandez
- Department of Medicine, Division of Infectious Diseases, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States
| | - Gaby Dashler
- Department of Emergency Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States
| | - Radhika Mehta
- Department of Emergency Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States
| | - Thomas Kickler
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States
| | - Gabor D Kelen
- Department of Emergency Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States
| | - Shruti H Mehta
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, United States
| | | | - Thomas C Quinn
- Department of Medicine, Division of Infectious Diseases, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, United States
- Division of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Baltimore, Maryland, United States
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Differentiation of Individuals Previously Infected with and Vaccinated for SARS-CoV-2 in an Inner-City Emergency Department. J Clin Microbiol 2022; 60:e0239021. [PMID: 35044204 PMCID: PMC8925900 DOI: 10.1128/jcm.02390-21] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Emergency departments (EDs) can serve as surveillance sites for infectious diseases. The objective of this study was to determine the burden of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection and to monitor the prevalence of vaccination against coronavirus disease 2019 (COVID-19) among patients attending an urban ED in Baltimore City. Using 1,914 samples of known exposure status, we developed an algorithm to differentiate previously infected, vaccinated, and unexposed individuals using a combination of antibody assays. We applied this testing algorithm to 4,360 samples from ED patients obtained in the spring of 2020 and 2021. Using multinomial logistic regression, we determined factors associated with infection and vaccination. For the algorithm, sensitivity and specificity for identifying vaccinated individuals were 100% and 99%, respectively, and 84% and 100% for previously infected individuals. Among the ED subjects, seroprevalence to SARS-CoV-2 increased from 2% to 24% between April 2020 and March 2021. Vaccination prevalence rose to 11% by mid-March 2021. Marked differences in burden of disease and vaccination coverage were seen by sex, race, and ethnicity. Hispanic patients, though accounting for 7% of the study population, had the highest relative burden of disease (17% of total infections) but with similar vaccination rates. Women and white individuals were more likely to be vaccinated than men or Black individuals. Individuals previously infected with SARS-CoV-2 can often be differentiated from vaccinated individuals using a serologic testing algorithm. The utility of this algorithm can aid in monitoring SARS-CoV-2 exposure and vaccination uptake frequencies and can potentially reflect gender, race, and ethnic health disparities.
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6
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Beck EJ, Hsieh YH, Fernandez RE, Dashler G, Egbert ER, Truelove SA, Garliss C, Wang R, Bloch EM, Shrestha R, Blankson J, Cox AL, Manabe YC, Kickler T, Rothman RE, Redd AD, Tobian AAR, Milstone AM, Quinn TC, Laeyendecker O. Differentiation of Individuals Previously Infected with and Vaccinated for SARS-CoV-2 in an Inner-City Emergency Department. J Clin Microbiol 2022. [PMID: 35044204 DOI: 10.1101/2021.10.13.21264968v1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/28/2023] Open
Abstract
Emergency departments (EDs) can serve as surveillance sites for infectious diseases. The objective of this study was to determine the burden of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection and to monitor the prevalence of vaccination against coronavirus disease 2019 (COVID-19) among patients attending an urban ED in Baltimore City. Using 1,914 samples of known exposure status, we developed an algorithm to differentiate previously infected, vaccinated, and unexposed individuals using a combination of antibody assays. We applied this testing algorithm to 4,360 samples from ED patients obtained in the spring of 2020 and 2021. Using multinomial logistic regression, we determined factors associated with infection and vaccination. For the algorithm, sensitivity and specificity for identifying vaccinated individuals were 100% and 99%, respectively, and 84% and 100% for previously infected individuals. Among the ED subjects, seroprevalence to SARS-CoV-2 increased from 2% to 24% between April 2020 and March 2021. Vaccination prevalence rose to 11% by mid-March 2021. Marked differences in burden of disease and vaccination coverage were seen by sex, race, and ethnicity. Hispanic patients, though accounting for 7% of the study population, had the highest relative burden of disease (17% of total infections) but with similar vaccination rates. Women and white individuals were more likely to be vaccinated than men or Black individuals. Individuals previously infected with SARS-CoV-2 can often be differentiated from vaccinated individuals using a serologic testing algorithm. The utility of this algorithm can aid in monitoring SARS-CoV-2 exposure and vaccination uptake frequencies and can potentially reflect gender, race, and ethnic health disparities.
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Affiliation(s)
- Evan J Beck
- Division of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland, USA
| | - Yu-Hsiang Hsieh
- Department of Emergency Medicine, Johns Hopkins University School of Medicinegrid.471401.7, Baltimore, Maryland, USA
| | - Reinaldo E Fernandez
- Department of Medicine, Johns Hopkins University School of Medicinegrid.471401.7, Baltimore, Maryland, USA
| | - Gaby Dashler
- Department of Emergency Medicine, Johns Hopkins University School of Medicinegrid.471401.7, Baltimore, Maryland, USA
| | - Emily R Egbert
- Department of Pediatrics, Johns Hopkins University School of Medicinegrid.471401.7, Baltimore, Maryland, USA
| | - Shawn A Truelove
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
| | - Caroline Garliss
- Department of Medicine, Johns Hopkins University School of Medicinegrid.471401.7, Baltimore, Maryland, USA
| | - Richard Wang
- Department of Emergency Medicine, Johns Hopkins University School of Medicinegrid.471401.7, Baltimore, Maryland, USA
| | - Evan M Bloch
- Department of Pathology, Johns Hopkins University School of Medicinegrid.471401.7, Baltimore, Maryland, USA
| | - Ruchee Shrestha
- Department of Pathology, Johns Hopkins University School of Medicinegrid.471401.7, Baltimore, Maryland, USA
| | - Joel Blankson
- Department of Medicine, Johns Hopkins University School of Medicinegrid.471401.7, Baltimore, Maryland, USA
| | - Andrea L Cox
- Department of Medicine, Johns Hopkins University School of Medicinegrid.471401.7, Baltimore, Maryland, USA
| | - Yukari C Manabe
- Department of Medicine, Johns Hopkins University School of Medicinegrid.471401.7, Baltimore, Maryland, USA
| | - Thomas Kickler
- Department of Pathology, Johns Hopkins University School of Medicinegrid.471401.7, Baltimore, Maryland, USA
| | - Richard E Rothman
- Department of Emergency Medicine, Johns Hopkins University School of Medicinegrid.471401.7, Baltimore, Maryland, USA
| | - Andrew D Redd
- Division of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland, USA
- Department of Medicine, Johns Hopkins University School of Medicinegrid.471401.7, Baltimore, Maryland, USA
| | - Aaron A R Tobian
- Department of Pathology, Johns Hopkins University School of Medicinegrid.471401.7, Baltimore, Maryland, USA
| | - Aaron M Milstone
- Department of Pediatrics, Johns Hopkins University School of Medicinegrid.471401.7, Baltimore, Maryland, USA
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
| | - Thomas C Quinn
- Division of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland, USA
- Department of Medicine, Johns Hopkins University School of Medicinegrid.471401.7, Baltimore, Maryland, USA
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
| | - Oliver Laeyendecker
- Division of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland, USA
- Department of Medicine, Johns Hopkins University School of Medicinegrid.471401.7, Baltimore, Maryland, USA
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
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7
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Beck EJ, Hsieh YH, Fernandez RE, Dashler G, Egbert ER, Truelove SA, Garliss C, Wang R, Bloch EM, Shrestha R, Blankson J, Cox AL, Manabe YC, Kickler T, Rothman RE, Redd AD, Tobian AA, Milstone AM, Quinn TC, Laeyendecker O. Differentiation of SARS-CoV-2 naturally infected and vaccinated individuals in an inner-city emergency department. MEDRXIV : THE PREPRINT SERVER FOR HEALTH SCIENCES 2021. [PMID: 34671778 PMCID: PMC8528087 DOI: 10.1101/2021.10.13.21264968] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Background Emergency Departments (EDs) can serve as surveillance sites for infectious diseases. Our purpose was to determine the burden of SARS-CoV-2 infection and prevalence of vaccination against COVID-19 among patients attending an urban ED in Baltimore City. Methods Using 1914 samples of known exposure status, we developed an algorithm to differentiate previously infected, vaccinated, and unexposed individuals using a combination of antibody assays. We applied this testing algorithm to 4360 samples ED patients obtained in the springs of 2020 and 2021. Using multinomial logistic regression, we determined factors associated with infection and vaccination. Results For the algorithm, sensitivity and specificity for identifying vaccinated individuals was 100% and 99%, respectively, and 84% and 100% for naturally infected individuals. Among the ED subjects, seroprevalence to SARS-CoV-2 increased from 2% to 24% between April 2020 and March 2021. Vaccination prevalence rose to 11% by mid-March 2021. Marked differences in burden of disease and vaccination coverage were seen by sex, race, and ethnicity. Hispanic patients, though 7% of the study population, had the highest relative burden of disease (17% of total infections) but similar vaccination rates. Women and White individuals were more likely to be vaccinated than men or Black individuals (adjusted odds ratios [aOR] 1.35 [95% CI: 1.02, 1.80] and aOR 2.26 [95% CI: 1.67, 3.07], respectively). Conclusions Individuals previously infected with SARS-CoV-2 can be differentiated from vaccinated individuals using a serologic testing algorithm. SARS-CoV-2 exposure and vaccination uptake frequencies reflect gender, race and ethnic health disparities in this urban context. Summary Using an antibody testing algorithm, we distinguished between immune responses from SARS-CoV-2-infected and vaccinated individuals. When applied to blood samples from an emergency department in Baltimore, disparities in disease burden and vaccine uptake by sex, race, and ethnicity were identified.
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Differential Performance of CoronaCHEK SARS-CoV-2 Lateral Flow Antibody Assay by Geographic Origin of Samples. J Clin Microbiol 2021; 59:e0083721. [PMID: 33903166 DOI: 10.1128/jcm.00837-21] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
We assessed the performance of the CoronaCHEK lateral flow assay on samples from Uganda and Baltimore to determine the impact of geographic origin on assay performance. Plasma samples from severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) PCR-positive individuals (Uganda, 78 samples from 78 individuals, and Baltimore, 266 samples from 38 individuals) and from prepandemic individuals (Uganda, 1,077, and Baltimore, 532) were evaluated. Prevalence ratios (PR) were calculated to identify factors associated with a false-positive test. After the first positive PCR in Ugandan samples, the sensitivity was 45% (95% confidence interval [CI], 24,68) at 0 to 7 days, 79% (95% CI, 64 to 91) at 8 to 14 days, and 76% (95% CI, 50 to 93) at >15 days. In samples from Baltimore, sensitivity was 39% (95% CI, 30 to 49) at 0 to 7 days, 86% (95% CI, 79 to 92) at 8 to 14 days, and 100% (95% CI, 89 to 100) at 15 days after positive PCR. The specificity of 96.5% (95% CI, 97.5 to 95.2) in Ugandan samples was significantly lower than that in samples from Baltimore, 99.3% (95% CI, 98.1 to 99.8; P < 0.01). In Ugandan samples, individuals with a false-positive result were more likely to be male (PR, 2.04; 95% CI, 1.03,3.69) or individuals who had had a fever more than a month prior to sample acquisition (PR, 2.87; 95% CI, 1.12 to 7.35). Sensitivity of the CoronaCHEK was similar in samples from Uganda and Baltimore. The specificity was significantly lower in Ugandan samples than in Baltimore samples. False-positive results in Ugandan samples appear to correlate with a recent history of a febrile illness, potentially indicative of a cross-reactive immune response in individuals from East Africa.
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Baker OR, Grabowski MK, Galiwango RM, Nalumansi A, Serwanga J, Clarke W, Hsieh YH, Rothman RE, Fernandez RE, Serwadda D, Kagaayi J, Lutalo T, Reynolds SJ, Kaleebu P, Quinn TC, Laeyendecker O. Differential Performance of CoronaCHEK SARS-CoV-2 Lateral Flow Antibody Assay by Geographic Origin of Samples. MEDRXIV : THE PREPRINT SERVER FOR HEALTH SCIENCES 2021:2021.04.12.21255284. [PMID: 33880484 PMCID: PMC8057252 DOI: 10.1101/2021.04.12.21255284] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Background We assessed the performance of CoronaCHEK lateral flow assay on samples from Uganda and Baltimore to determine the impact of geographic origin on assay performance. Methods Serum samples from SARS-CoV-2 PCR+ individuals (Uganda: 78 samples from 78 individuals and Baltimore: 266 samples from 38 individuals) and from pre-pandemic individuals (Uganda 1077 and Baltimore 532) were evaluated. Prevalence ratios (PR) were calculated to identify factors associated with a false-positive test. Results After first positive PCR in Ugandan samples the sensitivity was: 45% (95% CI 24,68) at 0-7 days; 79% (95%CI 64,91) 8-14 days; and 76% (95%CI 50,93) >15 days. In samples from Baltimore, sensitivity was: 39% (95% CI 30, 49) 0-7 days; 86% (95% CI 79,92) 8-14 days; and 100% (95% CI 89,100) 15 days post positive PCR. The specificity of 96.5% (95% CI 97.5,95.2) in Ugandan samples was significantly lower than samples from Baltimore 99.3% (95% CI 98.1,99.8), p<0.01. In Ugandan samples, individuals with a false positive result were more likely to be male (PR 2.04, 95% CI 1.03,3.69) or individuals who had a fever more than a month prior to sample acquisition (PR 2.87, 95% CI 1.12,7.35). Conclusions Sensitivity of the CoronaCHEK was similar in samples from Uganda and Baltimore. The specificity was significantly lower in Ugandan samples than in Baltimore samples. False positive results in Ugandan samples appear to correlate with a recent history of a febrile illness, potentially indicative of a cross-reactive immune response in individuals from East Africa.
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Affiliation(s)
- Owen R. Baker
- Division of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Baltimore, MD, USA
| | - M. Kate Grabowski
- Johns Hopkins University School of Medicine, Baltimore, MD, USA
- Rakai Health Sciences Program, Kalisizo, Uganda
| | | | | | - Jennifer Serwanga
- Uganda Virus Research Institute, Entebbe, Uganda
- Medical Research Council, Uganda Virus Research Institute and London School of hygiene and Tropical Medicine Uganda Research Unit
| | - William Clarke
- Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Yu-Hsiang Hsieh
- Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | | | | | - David Serwadda
- Rakai Health Sciences Program, Kalisizo, Uganda
- Makerere University School of Public Health, Kampala, Uganda
| | | | - Tom Lutalo
- Rakai Health Sciences Program, Kalisizo, Uganda
- Uganda Virus Research Institute, Entebbe, Uganda
| | - Steven J. Reynolds
- Division of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Baltimore, MD, USA
- Johns Hopkins University School of Medicine, Baltimore, MD, USA
- Rakai Health Sciences Program, Kalisizo, Uganda
| | - Pontiano Kaleebu
- Uganda Virus Research Institute, Entebbe, Uganda
- Medical Research Council, Uganda Virus Research Institute and London School of hygiene and Tropical Medicine Uganda Research Unit
| | - Thomas C. Quinn
- Division of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Baltimore, MD, USA
- Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Oliver Laeyendecker
- Division of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Baltimore, MD, USA
- Johns Hopkins University School of Medicine, Baltimore, MD, USA
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A Practical Approach to Filtering Facepiece Respirator Decontamination and Reuse: Ultraviolet Germicidal Irradiation. CURRENT TREATMENT OPTIONS IN INFECTIOUS DISEASES 2021; 13:35-46. [PMID: 33841050 PMCID: PMC8023544 DOI: 10.1007/s40506-021-00247-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/18/2021] [Indexed: 10/27/2022]
Abstract
Purpose of review Prior outbreaks of respiratory viruses have demonstrated the need for adequate personal protective equipment (PPE) for healthcare workers, particularly filtering facepiece respirators (FFR). Due to shortfalls of PPE during the SARS CoV-2 pandemic, the need for FFR decontamination and reuse (FFR-DR) strategies is paramount. This paper aims to discuss primary decontamination strategies, with an in-depth analysis of ultraviolet germicidal irradiation (UVGI), arriving at the decontamination strategy utilized at the Nebraska Medical Center (NMC). Methods Review of the primary literature in regard to FFR-DR as well as a synopsis of the current protocol for FFR-DR at NMC. Recent findings UVGI demonstrates effective decontamination of multiple pathogens-including several human respiratory viruses-while maintaining mask integrity and filtering capacity. UVGI was associated with degradation of strap integrity at higher doses than that utilized for decontamination or with reuse beyond 20 times. Summary UVGI effectively decontaminates N95 FFRs without significant reduction to fit or strap integrity and can be employed as a strategy for FFR-DR in times of emergency.
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