Chinese scientists also found that patients with blood type A were more likely to develop a severe case of COVID-19, according to the Times.
While the Chinese study does support the new study, questions remain on why blood type affects the severity of the illness. “That is haunting me, quite honestly,” said Franke.
The locus where the blood-type gene is located also contains DNA that acts an on-off switch for a gene producing a protein that triggers strong immune responses.
Comments are closed.