Severe Acute Respiratory Syndrome Coronavirus 2 Seroprevalence Among Adults in a Tropical City of the Caribbean Area, Colombia: Are We Much Closer to Herd Immunity Than Developed Countries?
Salim Máttar, Nelson Alvis‐Guzmán, Evelin Garay, Ricardo Rivero, Alejandra García, Yesica Botero, Jorge Miranda, Ketty Galeano, Fernando de la Hoz, Caty Martínez, Germán Arrieta, Álvaro A. Faccini‐Martínez, Camilo Guzmán, Hugo Kerguelen, Maria Moscote, Héctor Contreras, Verónica Contreras
Abstract
A serological survey was carried out in Monteria (500 000 population), a mid-size city in Colombia. An overall prevalence of 55.3% (95% confidence interval, 52.5%-57.8%) was found among a sample of 1.368 people randomly selected from the population. Test positivity was related to economic characteristics with the highest prevalence found in the most impoverished areas, representing 83.8% of the city's population. We found a prevalence that might be associated with some important level of population immunity.