SARS-CoV-2 infections in infants in Haiti 2020-2021; evidence from a serological cohort (preprint)

Between February 2019 and March 2021, 388 dried blood spot samples were obtained from 257 children <30 months of age who were part of a longitudinal maternal/infant cohort in Haiti. Among the children followed, 16.7% became seropositive; sampling date was the only covariate associated with the hazard of seroconversion.