People with blood type A more vulnerable, O at low risk: Study

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People with blood type A more vulnerable, O at low risk: Study

Last Updated : 17 Mar 2020 05:22:51 PM IST

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People with blood group 'A' may be more prone to the new coronavirus (COVID-19) infection while those with blood type 'O' has a lower risk of contracting the deadly virus, a first-of-its-kind study claimed on Tuesday.

Reported by the South China Morning Post (SCMP), the preliminary study looked at the blood group of patients in China who contracted the disease.

Researchers led by Wang Xinghuan with the Centre for Evidence-Based and Translational Medicine at Zhongnan Hospital of Wuhan University looked at blood group patterns of more than 2,000 infected patients in Wuhan and Shenzhen.

They found that blood type A patients showed a higher rate of infection and developed more severe symptoms.

Of 206 patients, 85 had type A blood; 63 per cent more than 52 with type O.

"People of blood group A might need particularly strengthened personal protection to reduce the chance of infection," the authors wrote, adding that Sars-CoV-2-infected patients with blood group A might need to receive more vigilant surveillance and aggressive treatment.

"Blood group O had a significantly lower risk for the infectious disease compared with non-O blood groups", said the study that is yet to be peer reviewed.

According to a study in the US National Center for Biotechnology Information (NCBI), 'O' is the most common blood group (37.12 per cent) in India, closely followed by B at 32.26 per cent, followed by A at 22.88 per cent while AB was the least prevalent group at 7.74 per cent.

In the US, about 44 per cent of the population is type O, while about 41 per cent is type A.

Wang wrote: "It might be helpful to introduce ABO blood typing in both patients and medical personnel as a routine part of the management of Sars-CoV-2 and other coronavirus infections, to help define the management options and assess risk exposure levels of people".

While more cases of the respiratory illness have been recorded globally, it is on the decline in China, demonstrating that the course of the outbreak has been altered, according to WHO Representative in the country Dr Gauden Galea.

"It is an epidemic that has been nipped as it was growing and stopped in its tracks. This is very clear from the data that we have, as well as the observations that we can see in society in general", he told UN News.

According to a recent study, in the case of 72,000 Chinese coronavirus patients, the overall fatality rate was 2.3 per cent but in the case of adults over 80, the same rate rose to 15 per cent.

Doctors believe that the novel coronavirus has "equal potential to penetrate and spread", irrespective of the gender, although various data show that more men are infected by the virus than women.

However, If you are type O does not mean you are absolutely safe, so follow all safetly guidelines issued by the local authorities.