A fake news story has been circulating for a while now that 5G masts cause Covid 19. An elderly client of Catbytes' tech support has told us how she "lost a night's sleep" after she was sent a video on Whatsapp making these assertions.
As this World Health Organisation report points out, Covid 19 is a virus. It cannot travel over radio waves or mobile networks:
Many countries, such as Sweden, that do not yet have 5G networks, have still been affected by Covid 19.