People with blood group 0 are at the lowest risk of contracting the coronavirus. A new research proves that among such a group, severe outcomes are less likely if the owners of the group even get sick. The global scientific and medical community continues to identify risk factors for the COVID-19 and potential therapeutic options. A new research shows that there is a link between blood type and vulnerability.
To find out its mechanisms, science needs an additional detailed research. People with blood group 0 are able to provide themselves with some protection from the virus. Such data were obtained based on an analysis of the state of the course of the disease about 473 thousand patients tested for COVID-19.
That analysis was compared with data from a general population of 2.2 million patients. Among the positive tests, the result in people with that blood group was the smallest. The majority of those infected with severe illness have blood types A, B and AB.
The researchers did not find any significant difference in infection rates between these groups. The experts from the University of Southern Denmark believe that it is important to select a control group to observe the behavior of COVID-19 in order to draw any conclusive conclusions.
Observing seriously ill patients, the scientists noticed that, for example, 95 people with COVID-19 hospitalized in Vancouver needed urgent ventilation. They all had blood types A or AB. And among the patients there was not a single difficult case where the person had blood type 0.
Taken together with these results, it is assumed that there may be a risk of organ dysfunction between the two blood groups, but not among people with blood type 0.