Living among a more diverse society of people has exposed our bodies to a larger variety of germs in which our immune systems have been protecting us against with increased resilience.

Asia is far more homogenous compared to the West. Like Native Americans, their downside to limiting their interactions with outsiders will eventually become their downfall, that, and the lab which created it didn't have a large enough variety of test subjects for viral testing.

Ergo, they made themselves most susceptible to contracting it. That's why you will see a far higher amount of Asians, or those of Asian decent, aka: (Half breeds/Hispanics) being diagnosed with Coronavirus and experiencing it's most severe symptoms.