15 February 2021, Brandenburg, Potsdam: Daycare center director Thomas Ho? (l) demonstrates a Corona quick test at the daycare center "Abenteuerland" next to Franziska Giffey (SPD, r), Federal Minister for Family Affairs, Senior Citizens, Women and Youth, and Mike Schubert (SPD, 2nd from right), Mayor of Potsdam. In the background is Kristina B?hm, head of the local health department. The spit tests have been used by daycare educators since the beginning of the month to test themselves twice a week at home before work. Photo: Soeren Stache/dpa-Zentralbild/POOL/dpa