Key Points -The receptor binding domain (RBD) of SARS-CoV-2 bears sequence and overall ABO blood binding similarity with human galectins.

-SARS-CoV-2 preferentially infects blood group A cells, providing a direct link between blood group A expression and increased infection.

FYI: that's the second most common blood type in Malaysia, and based on this 2013 paper, the A-type is found most amongst the Chinese population (of the four set categories, so uh, lain-lain is also your own phenotype, hooray, congrats)