Your post seems to ignore natural immunity completely. As in people who have had covid already and are immune, or already have cross reactive immunity from a c

Your post seems to ignore natural immunity completely. As in people who have had covid already and are immune, or already have cross reactive immunity from a coronavirus strain in a previous cold season. This Doctor in the Wall Street Journal last month brings attention to herd immunity gained through previous infection. https://www.wsj.com/articles/the-power-of-natural-immunity-11623171303 https://www.wsj.com/articles/the-power-of-natural-immunity-1...