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More Researchers Suggest Blood Type May Affect COVID-19 Risk and Severity

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More Researchers Suggest , Blood Type May Affect COVID-19 Risk and Severity . Two new studies indicate that people with Type O blood may be less likely to contract the coronavirus than those with other blood types. Blood group O is significantly associated with reduced susceptibility, Coronavirus Study, via 'Science Alert'. Both studies were published in the medical journal 'Blood Advances.'. One study found that coronavirus patients with either Type O or B blood spent an average of 4.5 fewer days in the ICU. In addition, Type O or B blood patients were 23 percent less likely to require a ventilator. According to the Oklahoma Blood Institute, Type O blood is the most common type. Nearly 48 percent of Americans have this blood type. Despite evidence of the link between blood type and the coronavirus, some researchers contend it isn't strong enough to "supersede other risk factors."