1. Prevalence and Clinical Profile of Severe Acute Respiratory Syndrome Coronavirus 2 Infection among Farmworkers, California, USA, June-November 2020
- Author
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Lewnard, Joseph A, Mora, Ana M, Nkwocha, Oguchi, Kogut, Katherine, Rauch, Stephen A, Morga, Norma, Hernandez, Samantha, Wong, Marcus P, Huen, Karen, Andrejko, Kristin, Jewell, Nicholas P, Parra, Kimberly L, Holland, Nina, Harris, Eva, Cuevas, Maximiliano, Eskenazi, Brenda, and CHAMACOS-Project-19 Study Team
- Subjects
Adult ,serosurvey ,Clinical Sciences ,coronavirus ,infection prevalence ,Microbiology ,California ,Vaccine Related ,respiratory infections ,Clinical Research ,Biodefense ,Prevalence ,Humans ,viruses ,Prospective Studies ,Lung ,essential workers ,SARS ,Farmers ,CHAMACOS-Project-19 Study Team ,SARS-CoV-2 ,Prevention ,Salinas Valley ,COVID-19 ,Pneumonia ,United States ,zoonoses ,Infectious Diseases ,Emerging Infectious Diseases ,Good Health and Well Being ,coronavirus disease ,Medical Microbiology ,Pneumonia & Influenza ,Public Health and Health Services ,Infection ,farmworkers ,severe acute respiratory syndrome coronavirus 2 - Abstract
During the ongoing coronavirus disease (COVID-19) pandemic, farmworkers in the United States are considered essential personnel and continue in-person work. We conducted prospective surveillance for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection and antibody prevalence among farmworkers in Salinas Valley, California, during June 15-November 30, 2020. We observed 22.1% (1,514/6,864) positivity for SARS-CoV-2 infection among farmworkers compared with 17.2% (1,255/7,305) among other adults from the same communities (risk ratio 1.29, 95% CI 1.20-1.37). In a nested study enrolling 1,115 farmworkers, prevalence of current infection was 27.7% among farmworkers reporting >1 COVID-19 symptom and 7.2% among farmworkers without symptoms (adjusted odds ratio 4.16, 95% CI 2.85-6.06). Prevalence of SARS-CoV-2 antibodies increased from 10.5% (95% CI 6.0%-18.4%) during July 16-August 31 to 21.2% (95% CI 16.6%-27.4%) during November 1-30. High SARS-CoV-2 infection prevalence among farmworkers underscores the need for vaccination and other preventive interventions.
- Published
- 2021