Corona killers and cats DEUTSCHE WELLE | SPECTRUM Download 4.1 MB Medium quality — 4.1 MB Low quality — 2.1 MB High quality — 8.2 MB What's the difference? What kind of UV light is best for eradicating Sars-COV-2? What's behind the spike in alcohol-related death in the United States? And if cats can remember names - how would you prove it? ENGLISH Germany Science · Technology