Health Care

COVID-19: This one blood group is less vulnerable to coronavirus

COVID-19: This one blood group is less vulnerable to coronavirus”

The new studies about blood type and coronavirus risk align with prior research on the topic. Most results were negative; just 7,422 tests came back positive.

Which blood types put coronavirus patients in danger? People with O-blood are also capable of donating red blood cells to any other type. SARS-CoV-2 is the virus that causes COVID-19. Of the roughly 4,600 people who tested positive and reported their blood type, 38.4 percent had Type O blood. Silverstein, who is also a former president of the American Society of Hematology, was not involved with the new studies.

The current rise in cases in several areas of the USA has many infectious disease experts anxious about a large spike in the fall and winter months, a time when the country is using health care resources to battle the flu. "The differences are just not that large".

Both new studies came out Wednesday in the journal Blood Advances.

In the second study, researchers looked at 95 critically ill COVID-19 patients in Canada from February to April, finding that blood type appeared to play a role in the severity of their illness. However, they remained in the intensive care unit (ICU) for longer on average.

Research is coalescing around the idea that people with Type O blood may have a slight advantage during this pandemic. The study suggests that people with blood types A, B, or AB may be more likely to be infected with Covid-19 than people with type O. This suggested that they had greater rates of lung injury from the virus - and dialysis for kidney failure.

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There are important caveats to consider from the new research.

In July, a study looking at 1,600 patients in Spain and Italy showed slightly higher rates of severe respiratory failure in patients with blood type A compared to those with blood type O.

Public health officials say that people with any blood type need to take the same mitigation precautions, such as wearing a mask and maintaining physical distancing and effective hand-washing.

Researchers of this study found that Covid-19 patients with blood groups A and AB had an increased risk of severe clinical outcomes, compared to patients with blood groups O or B. The researchers did not see any link between blood type and the length of each patient's total hospital stay, however.

Silverstein called the new research "interesting cocktail party conversation".

"But at the present time, there is no reason to think that if you have type O blood, you're protected from COVID-19".



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