Fig. 4

Evolution of the pandemic as alternatives to the observed situation in anuniversity campus in Belgium during the first COVID-19 wave. From left to right: (a) cumulative number of positive results over the screening period, (b) number of exposed and asymptomatic individuals in the university population, indicating the number of people who were isolated after screening (c) number of uninfected individuals in the university population and number of immune individuals (recovered). Units: number of individuals