In India their immune systems are probably stronger in general due to a general lack of sanitation. My mother grew up there, but after living in America for 30

In India their immune systems are probably stronger in general due to a general lack of sanitation. My mother grew up there, but after living in America for 30 years when she went back to visit and ate the same street food as her family she was the only one to get sick. They often warn visitors, in fact, to be careful around street food. While people from there can handle it fine, people who are used to dealing with an extremely sanitary environment, like Americans, cannot handle it. I wouldn't be surprised to hear there's a similar tolerance they might have to coronavirus infections. It's also why autoimmune disorders are more common in the first world than the third world