Similarly, type B individuals only have anti-A antibodies. Type O individuals have anti-A and anti-B antibodies, while type A individuals only have one kind: anti-B antibodies.
That's because of a particular type of antibody they make that attacks other red blood cells. You may know that blood type A individuals can't donate blood to people with type B blood. One theory is that antibodies may play a role. The question researchers are trying to answer is why blood type matters. An infection with a lower viral load makes a positive difference in clinical infection in all people. "Masks are important because they filter out some of the virus and decreases the viral load, which makes the infection less severe," says Dr. Your friend would have a worse case of COVID-19 because they were infected with more virus. Your friend sits next to the person infected. Say, for example, you and your friend who have the same susceptibility are both sharing a bus with someone who has asymptomatic COVID-19.
#B negative blood type and covid risk plus#
How much virus you were exposed to, your age, plus any of your underlying health conditions also affects the course and severity of the disease. Anderson.īlood type is not the only factor in disease severity.
"Some evidence shows the severity of the infection is associated with different blood cell types, but the mechanisms by which it happens are unclear," says Dr. Your blood type may also affect how severe the progression of COVID-19 will be. "We do know that people of all types can get infected with COVID-19," says cardiologist Daniel Anderson, MD, PhD. Yet these risks are relative, meaning people with type O blood are not immune to COVID-19. Blood type O seems to have the lowest risk. Recent data suggests that people with blood type A have a significantly higher risk of acquiring COVID-19 than non-A blood types. But how? What scientists have learned is blood type seems to matter in at least two ways: You may have heard that blood type matters when it comes to contracting COVID-19. Centers for Disease Control and Prevention (CDC) has updated masking guidelines since this was written.
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