They discovered that blood types A and AB were at a greater risk of severe symptoms than the O or B blood types.
The studies were aimed at reasoning why the coronavirus is fatal for some, while others don't even get to know if they have had it. For those who were inflicted by the virus, type A was 38 per cent, type B was 26 per cent, type AB was 10 per cent, and type O was 25 per cent.
The research papers added evidence that there may be a connection between blood type and susceptibility to COVID-19 but the researchers stated that more studies need to be done to better understand why and what it means for patients. "If one is blood group A, you don't need to start panicking". Past research has additionally proposed that individuals with Type O blood were less powerless to SARS, which shares 80% of its hereditary code with the new coronavirus.
However, both studies' authors note several limitations that warrant consideration, and suggest further research to confirm these findings and enhance scientists' understanding of blood type association to Covid-19 severity.
The researchers did not find any significant difference in rate of infection between A, B, and AB types. The latter group spent, on average, 13.5 days in the ICU.
Doctors say that using blood plasma will reduce the time a patient stays in the hospital due to: Corona complications. However, people who have blood types A and AB are the most vulnerable to the infection.
People with type A blood, however, accounted for 44.4% of the infected patients, the study found, despite making up 42.4% of the untested group.
Your blood group depends on the presence or absence of proteins called A and B antigens on the surface of RBCs, a genetic trait inherited from your parents. Individuals with O blood have neither antigen.
A preprint study published in March this year suggested that people with blood type A have a higher risk of acquiring Covid-19 compared with non-A blood groups, while another study published in June found that blood type O seemed to be more resistant against Covid-19 infection.
Among the SARS-CoV-2 individuals, considerably fewer group O individuals were found, conversely, more A, B, and AB individuals were noted.
Regardless of this developing group of proof, be that as it may, Mypinder Sekhon, a co-creator of the Vancouver study, said the link is as yet questionable. He said "I don't think this substitutes other risk factors of severity like age and comorbidities and so forth". However, they can only receive O negative blood. "And if you're blood group O, you're not free to go to the pubs and bars".