Are some of the blood groups more resistant to the coronary?

It seems that the new coronavirus SARS-CoV-2, which causes COVID-19, hits some people more seriously than others. As a result, some have only mild symptoms, while others need hospitalization and perhaps even connection with respiratory and ventilators. Generally speaking, risk factors for more serious symptoms from COVID-19 include: [...]
It seems that the new coronavirus SARS-CoV-2, which causes COVID-19, hits some people more seriously than others. As a result, some have only mild symptoms, while others need hospitalization and perhaps even connection with respiratory and ventilators.
In general, risk factors for more serious symptoms from COVID-19 include age, diabetes, heart disease, high blood pressure, smoking, overweight, and genetic factors.
Studies, one of which is published in The New England Journal of Medicine, also suggest that people with blood type A may have higher risk of COVID-19 and severe symptoms, while people with blood type 0 may have lower risk and milder symptoms.
However, scientists who have worked in the study say that they would never say to someone with blood type 0 to remain calm because there is less risk of infection.
What effect do blood groups have?
Blood groups have been discovered by Austrian immunologist and pathologist Dr. Carl Landsteiner, and for this they won the Nobel Prize in 1901.
Blood type is also determined by the Rh kh factor an inherited protein found or found












