Type O blood could be at lower Covid-19 risk, a new study su
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Having a particular blood type may mean you are less susceptible to the novel coronavirus, a new study suggests.

First blush look at the information from the more than 750,000 participants in the study shows the following:

• The preliminary data suggest that O blood type appears to be protective against the virus when compared to all other blood types.

• Individuals with O blood type are between 9-18% percent less likely than individuals with other blood types to have tested positive for COVID-19, according to the data.

• There appeared to be little differences in susceptibility among the other blood types.

• These findings hold when adjusted for age, sex, body mass index, ethnicity, and co-morbidities.

• Although one study found the blood group O only to be protective across rhesus positive blood types, differences in rhesus factor (blood type + or -) were not significant in 23andMe data. Nor was this a factor in susceptibility or severity in cases.

• Among those exposed to the virus — healthcare and other front line workers — researchers found that blood type O is similarly protective, but the proportion of cases within strata is higher.

23andMe researchers have yet to finish looking at what the genetic data indicate.

Note: The study is yet to be peer reviewed.

Source: https://blog.23andme.com/23andme-research/23andme-finds-evidence-that-blood-type-plays-a-role-in-covid-19/
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