Covid: blood groups affect the infection

Did you know that people with blood type 0 may be less susceptible to the risk of contagion from Covid-19? Not only vaccines. The research in this period is also measuring itself with other studies, which seem to reveal new dynamics on the trend of the infection. This one concerning blood groups, and which had already been anticipated a few months ago, seems to be grounded. According to the research, therefore, blood groups A and AB could run into serious complications related to the disease of this period. But let's find out more about this recent study.

Blood groups and Covid, the study carried out in Canada

To carry on this belief linked to the spread of the virus and blood groups is a study conducted in Canada. According to the researchers, therefore, the blood group affects not only the infection, but also the severity of the disease and therefore its course. The research is supported by some data. In fact, scientists from the Institute for Clinical Evaluative Sciences in Toronto conducted the study on 225.556 people. According to the research, the people analyzed and who had a negative O or Rh blood type presented less risk or had contracted it in a mild form.

Data on the groups analyzed

The research, therefore, showed that people in group 0 would have a 12 percent less chance of contracting the coronavirus. And you get to 21 percent if you have negative Rh. Not only. It was less than 13 percent, compared to the other blood groups, the risk of a severe form of Covid-19 or death. The words of the researchers confirm this hypothesis. "Those with blood type 0 may have developed antibodies that can recognize some aspects of the new virusJoel Ray of St. Michael's Hospital in Toronto, co-author of the study, told Reuters.

"Although we have seen a statistically significant association between blood type and severe disease or death - the researchers clarify-, it was also assumed that we had correctly identified a serious disease associated with Covid-19. Our composite result did not include venous thromboembolism, which is a well-described complication of Covid-19. It is also interesting that the phenotype and genotype of blood group O is associated with a reduced risk of venous thromboembolism, probably because members of group O have lower plasma levels ”.

A similar study had been conducted a few months ago and with a result in some respects the same. To make it happen the experts Odense University Hospital, the University of Southern Denmark and the University of British Columbia. The researchers investigated the potential link between blood type and the onset, symptoms and severity of Covid-19 infections. And they too had come to the same considerations as the Canadian blood group study. It is now necessary to go further and take a further step. According to the researchers, in fact, this blood group study may be instrumental in a better approach to addressing the health emergency. Above all, through a better preventive diagnosis and therefore an adequate treatment.