According to the data taken at the epicentre of the disease in Wuhan, experts have found that Type A blood type are significantly more likely to catch coronaviru than those with other blood type such as Type O, and Type AB.
In general population Type O+ blood is more common (35 percent), followed by Type A+ (30 percent). However, the study found that among the 206 patients who died with COVID-19, people with Type O was accounted for just 25% than Type A with 41%.
People with blood type O - which make up 32 percent of people in Wuhan has resulted with a quarter (25%) of death in the research.
The study in China has assessed 2,173 people who had been diagnosed with coronavirus, including 206 people who died after contracting the virus, from three hospitals in Hubei province.
Experts compared the data from the infected patients with 3,694 healthy people who wasn't infected by the virus in the same region.
They found that out of 206 patients in the study who died, 85 had type A blood - equivalent to 41 percent of all the deaths. While a quarter of deaths - 52% of people were Type O.
In the healthy Wuhan population, a city of 11 million people, 34 per cent of people are type A.
In the study cohort, 52 of the people who died were type O, making up a quarter of all deaths. Under normal conditions just 32 per cent of people are type O.
The figures for all infections, not just deaths, are 26 per cent and 38 per cent for type O and type A, respectively.
Experts said that a larger study group would make the figures more reliable.
"Blood group O was associated with a lower risk of death compared with non-O groups. To the contrary, blood group A was associated with a higher risk of death compared with non-A groups," the researchers wrote which was published online via medrxiv.
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