Alliance for Pandemic Preparedness

July 13, 2020

SARS-CoV-2 Antibody Prevalence in Blood in a Large School Community Subject to a Covid-19 Outbreak: A Cross-Sectional Study

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  • Among a representative sample of students and staff from a large school in Santiago, Chile that experienced a SARS-CoV-2 outbreak in mid-March, 10% of students and 17% of staff were antibody positive by mid-May, with younger students more likely to be seropositive. Forty percent of positive students and 18% of positive staff were asymptomatic, and the most common symptoms were fever (children and adults), abdominal pain (children), and chest pain (adults).  

Torres et al. (July 2020). SARS-CoV-2 Antibody Prevalence in Blood in a Large School Community Subject to a Covid-19 Outbreak: A Cross-Sectional Study. Clinical Infectious Diseases. https://doi.org/10.1093/cid/ciaa955