Study ties blood type to COVID-19 risk; O may help, A hurt

  • FILE - In this June 12, 2020, file photo, a health worker draws blood for COVID-19 antibody testing in Dearborn, Mich. A genetic analysis of COVID-19 patients published Wednesday, June 17, 2020, in the New England Journal of Medicine suggests a person’s blood type may have some influence on whether they develop severe disease. (AP Photo/Paul Sancya, File)

A genetic analysis of COVID-19 patients suggests that blood type might influence whether someone develops severe disease.

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