1.
medrxiv; 2022.
Preprint
in English
| medRxiv | ID: ppzbmed-10.1101.2022.06.21.22276668
ABSTRACT
We screened 65 longitudinally-collected nasal swab samples from 31 children aged 0-16 years who were positive for SARS-CoV-2 omicron BA.1. By day 7 after onset of symptoms 48% of children remained positive by rapid antigen test. In a sample subset we found 100% correlation between antigen test results and virus culture.
2.
medrxiv; 2022.
Preprint
in English
| medRxiv | ID: ppzbmed-10.1101.2022.03.17.22272561
ABSTRACT
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.