Blood Type O Linked to Higher COVID-19 Infection Risk
American scientists have uncovered a link between blood type and COVID-19 infection risk. A study published in Blood Advances reveals that people with type O blood may be more susceptible to the virus due to a specific binding preference.
The research, led by Neil A. Zakai and Nicholas S. Roetker from Brigham and Women's Hospital in Boston, found that the receptor-binding domain (RBD) of the SARS-CoV-2 virus has a strong affinity for antigens present in type O blood on respiratory cells. This preference is similar to that of the SARS-CoV virus, which caused the 2002-2003 outbreak. While the study suggests a higher risk for type O individuals, the researchers emphasize that blood type is just one of several factors influencing COVID-19 severity and infection.
The study highlights a potential link between blood type and COVID-19 infection risk, with type O blood showing a stronger binding preference to the SARS-CoV-2 virus. However, further research is needed to fully understand this relationship and its implications for infection and severity.
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