COVID-19(34) SARS-CoV-2(19) Epidemiology(14) Infection(12) Prevalence(11) Health(10) estimate(10) random(10) antibody(9) participant(9) determine(8) population surveillance(8) herpes zoster(8) Health Surveys(8) Pain(8) Epidemiologic methods(8) risk(8) medical records(8) surveillance.(8) Risk factors.(8) Health care seeking behavior(8) Follow-up(8) COVID-19 infection(7) IgG(7) 95% CI(6) SARS-CoV-2 viral detection(6) Neutralizing antibodies(6) recruit(6) determined by(6) virus(6)