Nation Why does COVID-19 impact people in different ways? Genetics play a role, study finds July 8, 2021July 9, 2021Karen Weintraub, USA TODAYComments Off on Why does COVID-19 impact people in different ways? Genetics play a role, study finds A study confirms or newly identifies 13 genes thatĀ appear to play a role in susceptibility to infection or that affect the severity of illness.