COVID-19 test inside the QuBA quick breath analyzer by screaming or singing inside an airlocked cabin...
Dutch engineer and inventor Peter van Wees screams for eight seconds inside his 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
