Many staff are also absent at Charité University Hospital: "We are currently experiencing a further increase in sick leave among medical and nursing staff," a spokesperson said in response to an enquiry. Nevertheless, patient care is guaranteed, but in individual areas, postponed appointments or longer waiting times are to be expected. Patients were asked for their understanding. "We are also currently urging all visitors to wear a mask in the Charité clinics to avoid the possible spread of infection," it said. In Berlin, public transport companies (BVG) have also reported a significant increase in sickness rates.