Blood type O least vulnerable to Covid; A, AB at most risk

Modesto Morganelli
Ottobre 17, 2020

Another study, done in Spain compared the outcomes of 1900 severely ill COVID+ patients with 2000 healthy, non-sick patients. It was found that those with blood types A or AB "were more likely to require mechanical ventilation, suggesting that they had greater rates of lung injury from COVID-19".

They found that patients with Type O or B blood spent, on average, 4.5 fewer days in the intensive-care unit than those with Type A or AB blood. Another recent study asked 120 people who were hospitalized with Covid-19 in France how they felt over 100 days after being first admitted, concluding that many were suffering from fatigue (55 percent), hard breathing (42 percent), loss of memory (34 percent), lack of concentration (28 percent), and sleep disorders (30 percent).

In this study, researchers analysed data from a Danish health registry that included more than 473 000 patients who were infected with Covid-19 between 27 February 2020 and 30 July 2020.

More than this, the research team also found that more of these patients required dialysis for kidney failure.

Their research showed those with blood type A or AB typically had a longer stay in the intensive care unit, with a median of 13.5 days. People with O blood have neither antigen.

According to the American Red Cross, O-positive is the most common type of blood across all races.

A preprint study published in March this year suggested that people with blood type A have a higher risk of acquiring Covid-19 compared with non-A blood groups, while another study published in June found that blood type O seemed to be more resistant against Covid-19 infection.

Apart from 28 patients who have died from COVID-19 complications, 15 others who tested positive for the virus were determined to have died from unrelated causes, including three whose deaths were attributed to a heart attack and another four, whose deaths were attributed to coronary heart disease.

Despite this growing body of evidence, however, Mypinder Sekhon, a co-author of the Vancouver study, said the link is still tenuous. "And if you're blood group O, you're not free to go to the pubs and bars".

This article was originally published by Business Insider.

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