Healthy persons and immunocompromised patients (nursing home research hub

LONGITUDINAL FOLLOW-UP OF SARS-COV-2 IMMUNITY IN IMMUNOCOMPROMISED POPULATIONS IN BELGIUM (COVICO) A non-commercial multicenter academic prospective cohort study during 2023-2026

This study looks at how well COVID-19 vaccines boost immunity in people with weakened immune systems and healthy individuals in Belgium. Researchers will check antibody levels three times a year to understand protection against new virus variants. It aims to help us better protect vulnerable groups.