The reason for this link is unclear, and further research is needed to say how it affects patients, if any.
Research adds to growing evidence
In contrast, 44.4% of Group A are positive, while in Denmark’s wider population, blood type accounts for 42.4%.
In another study, Canadian researchers had a higher proportion of patients with type A or AB than those with blood group O or B among 95 patients with severe COVID-19 (84%). , I found that there were 61 people. percent.
“If you have blood type A, don’t panic. If you have blood type O, you can’t go to pubs or bars freely.”
Unless you have to do a blood transfusion, there is little difference in the daily lives of most people.
Dr. Toben Barrington, lead author of the Danish paper and clinical professor at Odense University Hospital and the University of Southern Denmark, said that one should not be overly concerned about the association between blood type and COVID-19.
“I don’t know if this is some kind of protection for Group O or some kind of vulnerability in other blood types,” Dr. Barrington said.
“I think this is of scientific interest. Knowing what the mechanism is, it could be used positively in some way for treatment.”
In a Danish study, researchers analyzed data on Danish individuals tested between February 27 and July 30, from people who had not been tested for blood group distribution among them. Compared with the data.
They found that blood type was not a risk factor for COVID-19 hospitalization or death.
There are several theories, but researchers do not yet know which mechanism can explain the link between different blood types and COVID-19.
Other possible explanations include blood group antigens and how they affect the production of antibodies that fight infection. Alternatively, it may be related to genes related to blood type and their effects on receptors in the immune system.
“This is an interesting repetitive scientific observation and we really need more mechanical research,” he said.
“Important Research Question”
Previous genetic studies, combined with two new studies from Blood Advances, “suggest that this is the real phenomenon we see,” with a focus on emerging infectious diseases. Said Dr. Adalja.
“It hasn’t become an ironclad warship, but it’s clearly suggestive, and nothing contradicts it.
“The same pattern is appearing, and the O type tends to stand out.”
Dr. Adalja said blood types and their susceptibility to various infections were previously studied in the medical literature. For example, studies show that people with blood type O are more susceptible to norovirus infections.
“We are now beginning to fully understand, so I think the answer is an important research question.
“There is more science to be done here, but it seems to me that there is more evidence accumulated about this hypothesis.”