What explains Covid-19’s lethality for the elderly? Scientists look to ‘twilight’ of the immune system
https://orthosportsmed.com/wp-content/uploads/2015/01/osm-header-vs7.png00orthosportsmedhttps://orthosportsmed.com/wp-content/uploads/2015/01/osm-header-vs7.pngorthosportsmed2020-04-15 22:01:252020-04-15 22:01:30What explains Covid-19’s lethality for the elderly? Scientists look to ‘twilight’ of the immune system