Recent studies have suggested that people’s blood types may affect their risk of contracting the COVID-19 virus or developing a serious case of the disease. Overall, the findings indicate that people with Type O blood seem to be more protected and that those with Type A appear more vulnerable…

Any possible influence of blood type on COVID-19 appears small compared with the substantial impact of known risk factors, such as older age and underlying health conditions, said Glatt, who is a spokesperson for the Infectious Diseases Society of America. “In any individual patient, if they have risk factors or they don’t have risk factors, that is far, far more important,” he said…

“They certainly shouldn’t walk around high-fiving and saying, ‘I can do whatever I want, I don’t have to mask, I don’t have to worry about anything because I have O,'” Glatt said. “And they shouldn’t crawl into a corner of the world and not let anyone near them because they have A. Everybody should practice exactly the same way, whatever your blood type is, in terms of appropriate masking and social distancing.”