A collection of data (lab analysis and surveys) from a Belgian cohort of healthy people working at five sites across Belgium of the ‘External Department of Prevention and Protection at work’ of Mensura and at Carglass company. Data are about participants' immunity previous and after COVID-19 vaccination (dose 3) using mRNA COVID-19 vaccine BTB162b2. Redu-VAC is a randomised, multicenter, non-inferiority study investigating safety, reactogenicity and immunogenicity of a fractional booster dose (10µg versus 30µg) of the vaccine. Adverse events linked to the vaccination are available.
