COVID-19 and blood type: Whats the link? – Los Angeles Times

Older individuals are at greater risk than younger people. Those with persistent health problems like Type 2 diabetes, weight problems and major heart conditions are faring worse than those without them. Black and Latino Americans are at greater danger than Asian Americans and whites.Now theres evidence that blood type might be a danger aspect too.A handful of studies have suggested that individuals with some blood types are more likely to be hospitalized with COVID-19, while those with other blood types are less likely to require that level of care.
Heres an appearance at what scientists have discovered about blood type and its function in the COVID-19 pandemic.How lots of blood types exist?
Eight. Yours is determined in part by the existence (or lack) of A and B antigens on your red cell. Your blood type is A if you have only A antigens. Your blood type is B if you have just B antigens. If you have both, your blood type is AB, and if you have neither, your blood type is O.In addition, red cell might have a protein called Rh aspect. If you have it, youre Rh positive; if not, youre Rh negative.The combination of A and B antigens and the Rh element produces the eight significant blood types: A-positive, A-negative, B-positive, B-negative, AB-positive, AB-negative, O-positive and O-negative.
What did the New England Journal of Medicine study state about blood types?
After making changes to account for the impacts of age and sex on COVID-19 danger, the researchers found striking distinctions in blood types of the ill clients compared with the controls.In this population, having Type A blood was associated with a 45% increased threat of having serious COVID-19. On the other hand, having Type O blood was associated with a 35% lowered risk of the disease.

The research study style did not allow scientists to make any decision about whether blood type was associated with the danger of coronavirus infection, or, if contaminated, the risk of becoming badly ill. “They also suggest that a hereditary test and a persons blood type might provide helpful tools for recognizing those who may be at higher threat of severe disease.
At least two other groups have looked for links in between blood type and COVID-19 threat and discovered similar results.The very first inkling that blood type may have something to do with illness threat was available in March from researchers in China, who compared 2,173 COVID-19 patients in three hospitals in Wuhan and Shenzhen to more than 27,000 “normal individuals.” They found that people with Type A blood had a 21% higher danger of the illness than their counterparts with other blood types, and that individuals with Type O blood had a 33% lower risk.
The following month, a team from Columbia University examined 1,559 people in the New York City location who were checked to see whether they were contaminated with the coronavirus that triggers COVID-19. They found that having Type A blood was connected with a 34% greater opportunity of screening positive, while having Type O blood was related to a 20% lower chance of screening favorable. In addition, people with Type AB blood were 44% less most likely to check positive, although only 21 of the 682 people who tested favorable for the coronavirus had AB blood.The Columbia researchers noted that their findings about the risks connected with Type A and Type O blood were consistent with the arise from China, despite the fact that the circulation of blood types was considerably different in the populations of New York, Wuhan and Shenzhen.Both of these reports were posted to the MedRxiv site, where scientists share preliminary data before it has gone through peer review.Why would blood type have anything to do with COVID-19?
Thats not clear. Perhaps different mixes of A and B antigens alter the body immune systems production of infection-fighting antibodies or have some other unidentified biologic result, the authors of the New England Journal of Medicine study composed.
Another possibility is that the genes related to blood type also impact the ACE2 receptor on human cells, which the coronavirus looks for and latches onto, they wrote.How can I discover what my blood type is?
If your red blood cells contain A or B antigens, they will react with the antibodies and clump up on the card.If you just see a reaction to A antibodies, your blood type is A. Ditto for the B antibodies. If you see a reaction to both, your blood type is AB, and if theres no response, your blood type is O.

If that sounds like too much difficulty, you can contribute blood. If go to the Red Cross, theyll send you a donor card that shows your blood type.
Everyone must be as cautious as possible all the time, despite blood type. (That opts for those with Type O blood too.).
If youve been outside or came in contact with high-touch surface areas, clean your hands for at least 20 seconds. And be sure to clean doorknobs, faucets, phones and other frequently touched surface areas every day.For more suggestions on staying safe, follow this guidance from Centers for Disease Control and Prevention.

Black and Latino Americans are at greater risk than Asian Americans and whites.Now theres evidence that blood type could be a danger factor too.A handful of studies have suggested that individuals with some blood types are more most likely to be hospitalized with COVID-19, while those with other blood types are less most likely to require that level of care. If you have both, your blood type is AB, and if you have neither, your blood type is O.In addition, red blood cells may have a protein called Rh element. After making modifications to account for the results of age and sex on COVID-19 danger, the researchers found striking differences in blood types of the sick patients compared with the controls.In this population, having Type A blood was associated with a 45% increased threat of having extreme COVID-19. They found that having Type A blood was associated with a 34% higher opportunity of testing positive, while having Type O blood was associated with a 20% lower opportunity of screening positive. In addition, people with Type AB blood were 44% less most likely to check positive, although only 21 of the 682 individuals who checked favorable for the coronavirus had AB blood.The Columbia researchers kept in mind that their findings about the dangers associated with Type A and Type O blood were constant with the outcomes from China, even though the circulation of blood types was significantly different in the populations of New York, Wuhan and Shenzhen.Both of these reports were published to the MedRxiv site, where scientists share preliminary data before it has been subjected to peer review.Why would blood type have anything to do with COVID-19?

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