SARS-COV-2 virus throws different symptoms for everyone, ranging from mild, atypical, moderate or more terrible ones. The severity can also differ on the basis of age, gender, co-morbidities. Recent studies shows that COVID-19 condition also depends on your blood group. Certain blood groups have a lower susceptibility to the infection and illness, while some are more likely to fall sick. Link between blood group and COVID severity. The subject emerged in China in late March when found that ‘type A’ was more likely to have symptoms of COVID-19, since ‘type O’ blood group had more proteins which has less reactivity of the virus.
Among 473,000 people tested for COVID-19 to data from a control group of more than 2.2 million people from the general population. Scientists found that blood type O had a less infection risk and organ complications if hospitalized. The severity and higher infection chances were found among those with blood type A or AB. Ethnicity was also a factor considered to analyse COVID risks. Blood types A or AB were more likely to require mechanical ventilation and oxygen support post COVID infection.