58KiB, 719x655, 1583889421996.jpg View SameGoogleiqdbSauceNAO Severe acute respiratory syndrome coronavirus 2 Anonymous Mon 15 Feb 12:22:44 2021 No.12708171 ViewReplyOriginalReport Quoted By: >>12708180 If this virus is new then how come many people don't develop symptoms at all? How can their immune systems fight off an unknown virus?