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upstart [soylentnews.org] writes:

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upstart [soylentnews.org] writes in with an IRC submission for c0lo:

Blood type could be linked to Covid-19 risk and severity, new research suggests [cnn.com]:

People with blood type O may have lower risk of Covid-19 infection and severe illness, two new studies suggest

The research provides further evidence that blood type (also known as blood group) may play a role in a person's susceptibility to infection and their chance of having a severe bout of the disease. The reasons for this link aren't clear and more research is needed to say what implications, if any, it has for patients.

Studies add to growing evidence

A Danish study found that among 7,422 people who tested positive for Covid-19, only 38.4% were blood type O -- even though, among a group of 2.2 million people who were not tested, that blood type made up 41.7% of the population.

By contrast, 44.4% of group A tested positive, while in the wider Danish population that blood type makes up 42.4%.

Correction: A previous version of this story inaccurately reported how many of the people who tested positive in the Danish study were blood type O.

Journal Reference:
The Severe Covid-19 GWAS Group. Genomewide Association Study of Severe Covid-19 with Respiratory Failure [open], New England Journal of Medicine (DOI: 10.1056/NEJMoa2020283 [doi.org])

Original Submission