Samples collected in CHRIS sub-studies, which have received specific Ethics Committee approval.
Samples from the CHRIS COVID-19 (Corona-virus disease 2019) sub-study, which enrolled 4,451 CHRIS cohort participants and 1,215 of their co-inhabitants for prevalence estimation, screening, investigation of determinants of incident infection, and immune response monitoring among infected participants.
3 variables.
1 sub-modules.