Blood Type Doesn’t Affect Your COVID Risk

MONDAY April 5, 2021 (HealthDay News) – A or B, AB or O, whatever – your blood type has nothing to do with your risk of getting severe COVID-19, a new study finds.

At the start of the pandemic, some reports suggested that people with type A blood were more susceptible to COVID, while those with type O blood were less.

But an examination of nearly 108,000 patients in a tri-state health network found no link between blood type and COVID risk.

“Since the start of this pandemic, there have been postulated associations between blood type and susceptibility to disease,” said Dr. Amesh Adalja, principal investigator at the Johns Hopkins Center for Health Security.

“From this large study, it appears that there is no association between blood type and sensitivity or severity, and other explanations were likely present,” added Adalja, who played no role in the study.

An early report from China suggested that the blood type could influence the risk of COVID. Subsequent studies in Italy and Spain confirmed this, the researchers said in briefing notes.

However, other studies conducted in Denmark and the United States have yielded mixed and contradictory results.

To clarify matters, researchers led by Dr. Jeffrey Anderson, of the Intermountain Medical Center Heart Institute in Murray, Utah, analyzed data from tens of thousands of patients with Intermountain Healthcare, a nonprofit healthcare system from 24 hospitals and 215 clinics in Utah, Idaho. and Nevada.

Of those in the scan, nearly 11,500 tested positive for the coronavirus, while the rest tested negative.

Blood group played no significant role in the risk of contracting COVID, the researchers reported on April 5 in JAMA network open.

“I’ve always said this whole blood type thing was a big deal,” said Dr. Aaron Glatt, department chair and hospital epidemiologist at Mount Sinai South Nassau in Oceanside, New York. enough for people to be terrified if they have one type of blood group or reassured if they have another blood type. It never made a practical difference. “

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