Low levels of vitamin D have been linked to higher risk for severe COVID-19, but high vitamin D levels do not fix the problem. Vitamin D fails to help in severe COVID-19 cases Whether or how this information might influence COVID-19 prevention or treatment is still unclear. "Our next study will specifically look at such antibodies, and whether they explain the protective effect," Ray said. Michael's Hospital in Toronto told Reuters. People in these blood type groups may have developed antibodies that can recognize some aspect of the new virus, coauthor Dr. People in any blood group who were Rh-negative were also somewhat protected, especially if they had O-negative blood. Among 225,556 Canadians who were tested for the virus, the risk for a COVID-19 diagnosis was 12% lower and the risk for severe COVID-19 or death was 13% lower in people with blood group O versus those with A, AB, or B, researchers reported on Tuesday in Annals of Internal Medicine. Alissa Eckert, MS Dan Higgins, MAM/CDC/Handout via REUTERSĬertain blood groups less likely to get COVID-19Ī large study adds to evidence that people with type O or Rh−negative blood may be at slightly lower risk from the new coronavirus. One of the most severe-and poorly understood-complications of COVID-19 is that in some people, the virus causes clotting to form throughout the body, which can cause heart attacks, strokes and pulmonary embolisms, some of which can be fatal.FILE PHOTO: The ultrastructural morphology exhibited by the 2019 Novel Coronavirus (2019-nCoV), which was identified as the cause of an outbreak of respiratory illness first detected in Wuhan, China, is seen in an illustration released by the Centers for Disease Control and Prevention (CDC) in Atlanta, Georgia, U.S. Specific to COVID-19, people with type O blood have a lower tendency to form clots overall. Some blood types seem to be more effective sentries than others. When a virus or bacteria enter the body, those antigens trigger the immune system to fight off the invader. It may be due to antigens, proteins that cover the surface of red blood cells and determine your blood type. For example, people with type O blood tend to become sicker from cholera than people with other blood types. Other peer-reviewed studies have come to the same conclusion about COVID.Īnd scientists have previously found that certain blood types have seem to be more protective against certain illnesses than others. RELATED: 7 Tips You Must Follow to Avoid COVID, Say Doctors What does this mean? " The O and Rh− blood groups may be associated with a slightly lower risk for SARS-CoV-2 infection and severe COVID-19 illness," the researchers concluded. The researchers found that people with blood type O had a lower chance of severe COVID illness or death compared to people with other blood types.Īdditionally, people with Rh-negative blood were found to have a lower probability of both infection and serious COVID-19 illness than people with Rh-positive blood. The Blood Type Resulted in "Slightly Lower Risk" of Infection Read on-and to ensure your health and the health of others, don't miss these Sure Signs You've Already Had Coronavirus. The highest probability was in the blood group B positive, at 4.2%. Scientists found that people with blood type O negative had a 2.1% chance of testing positive for coronavirus-the lowest probability among all blood groups. Research published in the journal Annals of Internal Medicine looked at more than 225,000 people who had been tested for COVID-19 between Jan.
People with blood type O have a lower chance of being infected with or developing serious illness from COVID-19, a recent study says.
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