People with blood type O may have lower risk of COVID-19, ne
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People with blood type O may be less vulnerable to Covid-19 and have a reduced likelihood of getting severely ill, according to two studies published Wednesday. Both studies were published in the journal Blood Advances.

The research provides further evidence that blood type (also known as blood group) may play a role in a person's susceptibility to infection and their chance of having a severe bout of the disease. The reasons for this link aren't clear and more research is needed to say what implications, if any, it has for patients.

In the Danish study, researchers analyzed data on Danish individuals who were tested between February 27 and July 30, and the distribution of blood types among those people was compared with data from people who had not been tested. They found that blood group wasn't a risk factor for hospitalization or death from Covid-19.

This study found that among 7,422 people who tested positive for Covid-19, only 38.4% were blood type O -- even though, among a group of 2.2 million people who were not tested, that blood type made up 41.7% of the population.

By contrast, 44.4% of group A tested positive, while in the wider Danish population that blood type makes up 42.4%.

In the other study, researchers in Canada found that among 95 patients critically ill with Covid-19, a higher proportion with blood type A or AB -- 84% -- required mechanical ventilation compared with patients with blood group O or B, which was 61%.

The Canadian study also found those with blood type A or AB had a longer stay in the intensive care unit, a median of 13.5 days, compared with those with blood group O or B, who had a median of nine days.

Source: https://ashpublications.org/bloodadvances/article/4/20/4990/463793/Reduced-prevalence-of-SARS-CoV-2-infection-in-ABO
https://ashpublications.org/bloodadvances/article/4/20/4981/464437/The-association-of-ABO-blood-group-with-indices-of
D●●●v P●●●●r and 14 others like this25 shares
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Dr. A●●●●●h A●●●●●a
Dr. A●●●●●h A●●●●●a Critical Care Medicine
A lot of half baked studies circulating. More misleading than anything else. Should be prohibited.
Oct 21, 2020Like1
P●●●●k L●d
P●●●●k L●d General Medicine
This sounds very primitive. It is the most common blood group so can we conclude that majority of population is at lower risk of contracting the infection.!?? It might be a stastical fallacy.
Oct 21, 2020Like1