30 March 2020, Berlin: Nina Leimer (r), 20 years old, paramedic and second semester medical student, takes blood from a patient in a tent in the early morning, wearing protective clothing. The tent stands next to her mother's medical practice in Berlin-Lubars. Here, from 06.00 a.m. to 09.00 a.m., throat swabs are taken for testing for the coronavirus and blood samples are taken for the possible detection of antibodies against the coronavirus. Photo: Kay Nietfeld/dpa