COVID-19 test inside the QuBA quick breath analyzer by screaming or singing inside an airlocked cabin...
Dutch engineer and inventor Peter van Wees points at the result graph of a COVID-19 test in front of his invention, the quick breath analyzer QuBA that scans exhalation air for the coronavirus instead of taking unpleasant nasal swab tests, amid COVID-19 pandemic, in Remscheid, Germany April 30, 2021. REUTERS/Wolfgang Rattay
