Yes it has been seen in a lot of studies that people with blood group 'O' have a lesser risk of being infected whereas all other blood groups have a increased chance of being infected with this deadly virus. The highest being in blood group 'A' all over the world.
The following study reveals that individuals with blood group "A" are at higher risk for COVID-19 infection, while those with blood group "O" are at lower risk.
Article Relationship between blood group and risk of infection and d...
Please also see the link below.
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7454371/
Also, take a look at this useful RG link'
Article Why blood group A individuals are at risk whereas blood grou...
Mainly 2 blood groups are affecting in covid-19. Blood group of A is higher risky than any other blood group and blood group of O is lower risky than any other blood groups in this infection.@Ar
Thank you for this question
Most studies prooved that blood group A is at higher risk while blood group O are at lower risk.
A new study provides further evidence that people with certain blood types may be more likely to contract COVID-19. Specifically, it found that the new coronavirus (SARS-CoV-2) is particularly attracted to the blood group A antigen found on respiratory cells. https://www.webmd.com/lung/news/20210303/why-blood-type-may-matter-for-covid-infection
Individuals with blood type O may have lowest risk of infection; individuals with A and AB may have increased risk of severe clinical outcomes https://www.hematology.org/newsroom/press-releases/2020/possible-link-between-blood-type-and-covid-19
Check https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0251535
Hello Ar,
Check this paper.
https://www.mdpi.com/1660-4601/18/1/276/pdf
Dear respected doctor Ar,
Thanks for this important question.
I am in a good agreement whit my respect colleagues RG doctor Aqeel answers, that A blood group system are much affected than other ABO blood group type system.