Seroprevalence of IgA and IgG against SARS-CoV-2 and Risk Factors in Workers from Public Markets of Guatemala

Public market workers may be disproportionally exposed to SARS-CoV-2 due to interactions with shoppers. We aimed to estimate the seroprevalence of SARS-CoV-2 and determine whether occupation or adherence to preventive practices were associated with exposure. From July to December 2021, we longitudin...

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Bibliographic Details
Published in:COVID 2023-09, Vol.3 (9), p.1416-1428
Main Authors: Grajeda, Laura M., Mendizábal-Cabrera, Renata, Romero, Juan Carlos, López, María Reneé, Morales, Evelyn, López, Beatriz, Zielinski, Emily, Cordón-Rosales, Celia
Format: Article
Language:English
Subjects:
markets
SARS-CoV-2
seroepidemiological studies
workers
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Summary:Public market workers may be disproportionally exposed to SARS-CoV-2 due to interactions with shoppers. We aimed to estimate the seroprevalence of SARS-CoV-2 and determine whether occupation or adherence to preventive practices were associated with exposure. From July to December 2021, we longitudinally surveyed two Guatemalan markets twice. We collected blood to detect anti-S IgA, anti-S IgG, and anti-N IgG using ELISA, and a nasopharyngeal swab to detect SARS-CoV-2 using rRT-PCR. We estimated seroprevalences and assessed associations using generalized estimating equations. Of 229 workers, 109 (48%) participated in the first survey and 87 (38%) in the second. At baseline, 77% were female, 64% were aged
ISSN:2673-8112
2673-8112
DOI:10.3390/covid3090097