Q: Is there
anything to the rumor that some blood types may be at higher risk for
A recent study
published in the New England Journal of Medicine found that blood
group O was associated with a lower risk of acquiring Covid-19 as
compared with non-O blood groups.
Blood group A was
associated with a higher risk than non-A blood groups. researchers concluded. A potential explanation may be because the immune systems of people with Type O blood already
have antibodies for both A and B in their plasma. Thus, their bodies are more
equipped to identify foreign proteins—including those on the surface of
viruses. Researchers do not yet
know, however, if type A
has an increased susceptibility to infection or to severity.