Stock Photo - 01 February 2022, Mecklenburg-Western Pomerania, Greifswald: Medical technical assistant Kathrin Rosa prepares swab samples from test centers for examination in the automated machine in the PCR laboratory at the University Medical Center. Over 170,000 samples have been tested for coronavirus in the laboratories of the Friedrich Löffler Institute for Medical Microbiology in the last two years. The swabs come from the University Hospital itself, from Wolgast Hospital and from public testing centers. Between 350 and 700 new PCR tests are performed every day. Photo: Jens Büttner/dpa-Zentralbild/dpa. - Greifswald/Mecklenburg-Western Pomerania/Germany