Saturday, March 19, 2022

A new study on blood type and susceptibility to SARS-Cov-2 infection

The association between blood type and susceptibility to infection with SARS-Cov-2 (as well as the severity of the infection) was already being discussed in 2020, but I first heard about it today when a friend asked me if I had blood type O. A study published last week has been read as confirming the association, but one co-author seems rather hesitant about it to me: "Our study does not link precise blood group with risk of severe COVID-19 but since previous research has found that proportion of people who are group A is higher in COVID-19 positive individuals, this suggests that blood group A is more likely candidate for follow-up studies." (Andrew Shields, #111words, 19 March 2022)


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