Blood type may determine susceptibility to COVID-19, study indicates

Genetic testing firm 23andMe says it has found preliminary evidence that people with type O blood may be less susceptible to contracting COVID-19.

In a blog post Monday, the company says initial data from a study it is conducting on the virus indicated those with type O blood were 9 to 18 percent less likely to have tested positive for the coronavirus. Those exposed to the virus, such as medical workers and other emergency personnel, were 13% to 16% less likely to test positive, according to 23andMe.

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