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A new study has concluded that blood groups A, B, AB or O have nothing to do with the risk of severe cases of Covid-19.
And at the start of the epidemic, some reports indicated that people with type A blood were more likely to develop ‘Covid-19’, while those with type O blood were less likely to be infected.
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But an examination of nearly 108,000 patients in a health network of three US states found no link between the blood group and the risk of “Covid-19”.
“Since the start of this epidemic, there have been suspected associations between blood type and susceptibility to disease,” said Dr. Amish Adalja, principal investigator at the Johns Hopkins Center for Health Security.
“From this large study, it appears that there is no correlation between blood type and sensitivity or severity, and it is possible that there are other explanations,” added Adalja, who did not ‘played no role in the study.
An early report from China indicated that the blood type may influence the risk of infection with the coronavirus. This is supported by subsequent studies in Italy and Spain, the researchers said.
However, other studies conducted in Denmark and the United States have provided mixed and conflicting results.
To illustrate, researchers led by Dr. Geoffrey Anderson, of the Intermountain Medical Center Heart Institute in Murray, Utah, analyzed data from tens of thousands of patients from Intermountain Healthcare, a healthcare system for the purpose of nonprofit that includes 24 hospitals and 215 clinics in Utah, Idaho and Nevada.
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Of those included in the scan, nearly 11,500 were found to be infected with the coronavirus, while the rest tested negative.
On April 5, in the journal JAMA Network Open, researchers reported that blood type did not play a significant role in a person’s risk of developing “Covid-19.”
“I’ve always said this whole blood type thing is nonsense about nothing. People just have to be terrified if they have any type of blood,” said Dr. Aaron Gallatt, Chief Medical Officer and epidemiologist at Mount Sinai Hospital, South Nassau in Oceanside, New York. Blood or reassured if they had another blood type. It made no practical difference. “
Glatt was not involved in the new research. He said the results of previous studies explain why the association differs with causation, in other words, showing that two things are statistically related differs from proving that one caused the other.
Researchers cannot understand why previous studies have come to different conclusions about the relationship between blood groups and the severity of ‘Covid-19’, but they point to a number of factors that may have contributed to the previous findings.
They say sheer chance, genetic differences, geography and variants, may have led to distorted data showing that certain blood groups are more vulnerable.
However, the study found that while the blood type has no effect on the risk of developing ‘Covid-19’, there are other factors that have an impact, such as old age, the development of underlying diseases. , etc.
Source: Medical Express
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