Stock Photo - 01 February 2022, Mecklenburg-Western Pomerania, Greifswald: Empty tubes for swab sticks are placed in a foil pouch during the preparation of corona swab samples from test centers. The samples are prepared by hand for further 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 over the past two years. The swabs come from the University Hospital itself, from Wolgast Hospital and from the public testing center. Between 350 and 700 new PCR tests are performed every day. Photo: Jens Büttner/dpa-Zentralbild/dpa. - Greifswald/Mecklenburg-Western Pomerania/Germany