People with type O blood may be at a lower risk of catching coronavirus and being hospitalised by the disease, according to a study from 23andMe, the genetics testing company.
Preliminary data from a study of more than 750,000 participants showed that people with type O blood were 9-18 per cent less likely to have tested positive for Covid-19.
Individuals who had been exposed to the virus — including healthcare and frontline workers — were 13-26 per cent less likely to test positive, according to the data, which has not yet been peer reviewed or published in a medical journal.
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