What We Know About Blood Type and the Coronavirus – The Cut

As scientists around the world have raced to understand COVID-19, the general public has actually been swamped with a flurry of early research studies and occurring recommendations, a few of which have been contradictory, leaving us with “coronavirus whiplash.” A current source of confusion has been the relationship in between the coronavirus and blood type. Early in the pandemic, some researchers observed that people with type A blood appeared to be at a greater risk for establishing a serious case of COVID-19. Nevertheless, clashing research has actually mounted, and it now appears like the link between the coronavirus and blood type is much weaker than early research studies recommended.

In the early months of the pandemic, a handful of research studies suggested that blood type might be a threat aspect for both getting infected with the coronavirus and developing a severe case. In March, a research study out of China compared blood samples of 2,173 coronavirus clients with samples from healthy people and found that 38 percent of the patients had type A blood, in contrast to 32 percent of the unaffected population in surrounding areas; they likewise discovered that those with type O blood appeared to have actually a lowered threat of getting infected.

Blood vials.
Photo: Getty Images/Science Image Library

Heres what we understand about the coronavirus and blood type.

In June, The New England Journal of Medicine published a peer-reviewed research study on the subject, in which European scientists looked at more than 1,600 clients who contracted extreme cases of COVID-19. (The study characterized serious health problem by the requirement for a ventilator or another form of oxygen supplementation.) In general, the study discovered that those with type A blood had a 45 percent greater risk of developing a serious case of COVID-19, while those with type O had a 35 percent decrease in risk.

Last week, the New York Times reported on 2 more recent research studies that show that blood type may not be as big of a threat element as earlier research study recommended. One study was conducted at Columbia Presbyterian Hospital, which reviewed medical records of 7,770 coronavirus cases. The scientists found that individuals with type A blood in fact appeared less likely to establish a case of COVID-19 major sufficient to need ventilation. (Researchers launched the preliminary outcomes from this study, involving 1,559 coronavirus patients, in April; per the Times, the whole research study, including the larger sample size, is still under evaluation for publication in a clinical journal.).

Public-health professionals agree that, no matter what your blood type, no one needs to presume theyre secured from the coronavirus. Dua told the Times she “would not even bring up” blood type when taking a look at why a person mayve tested favorable for the coronavirus.

Per the Times, both studies found that people with type O had a somewhat lower threat of getting the coronavirus. Anahita Dua, a senior author of Massachusetts General Hospitals study, warned versus jumping to conclusions. “These findings require to be further checked out to determine if there is something intrinsic in these blood types that might potentially provide defense or induce risk in people,” she informed Harvard Medical School.

A 2nd study, by Massachusetts General Hospital, revealed that blood type did not increase ones possibility of falling seriously ill, which researchers specified as requiring intubation or passing away. Researchers did, nevertheless, find that people with type AB and B blood had a somewhat greater risk of screening positive.

Conflicting research has mounted, and it now looks like the link in between the coronavirus and blood type is much weaker than early studies suggested.

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In the early months of the pandemic, a handful of studies suggested that blood type might be a risk element for both getting infected with the coronavirus and establishing a severe case. In March, a study out of China compared blood samples of 2,173 coronavirus patients with samples from healthy people and found that 38 percent of the clients had type A blood, in contrast to 32 percent of the untouched population in surrounding areas; they likewise discovered that those with type O blood appeared to have a reduced danger of getting infected. Last week, the New York Times reported on 2 more recent studies that show that blood type may not be as big of a threat element as earlier research study recommended. Dua told the Times she “would not even bring up” blood type when taking a look at why a person mayve tested favorable for the coronavirus.