Can your blood type increase your chance of developing COVID? An article by Erin Prater published in the Fortune web site suggests that those with Type A blood might be at an elevated risk compared to those with Type O. 

If you have type O blood, thank your ancestors. They re the ones who gave you the blood type.

The article may be found at: https://fortune.com/well/2023/06/27/which-blood-type-greater-risk-getting-covid-19/.