About many confusing aspects of COVID 19. Please Note : Contacts have to give their swab test between the 5th and 10th day after first contact (Not the latest contact, as I have said in the video) with a person suspected/proven to have COVID 19. CLEARINGconfusionCoronaviruscovidCOVID-19COVID19immune systemIMMUNITYvideoVITAMINvitamin covid19vlogYouTube
