Why a Coronavirus-Flu ‘Twindemic’ May Never Happen - The New York Times

Scientists are exploring a theory suggesting that exposure to one respiratory virus helps the body fend off competing pathogens.

The notion of that there is a sort of interplay between viruses first emerged in the 1960s, when vaccinations for polio, which contain weakened poliovirus, significantly cut the number of respiratory… [+1909 chars]

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