Nationwide antibody study
on the spread of SARS-CoV-2 infection

Multi-local and serial cross-sectional prevalence study on antibodies against SARS-CoV-2 in Germany

The actual Seroprevalence Seroprevalence denotes the proportion of people in a population who test seropositive for a specific infectious agent, as measured by blood tests (serological tests). It is often reported as a weighted percentage of the total number of samples tested. of SARS-CoV-2 in the population is crucial to a possible Underreporting Under-coverage (statistical unit) denotes incomplete coverage in which only a more or less large part of a total is reached. Under-reporting of COVID case numbers is due to a failure to report by doctors or due to a non-doctor's visit (slight disease progression). to better understand infected people and to make decisions about possible continuation or termination of Interventions Interventions are planned and targeted measures to prevent or remedy the spread of cases and to contain negative consequences. and also the precise determination of Mortality rates Mortality rates also called mortality (mortality rate), is defined as the number of deaths during a certain period in relation to the population at risk. and to enable severe disease courses.