Explained: How some people stayed COVID free | The Times of India
There are several possibilities of why some people may still be able to remain uninfected by Coronavirus.
One of the common reasons could be that these people have actually been infected, but their infection may have been too mild to recognize as COVID or they may have been asymptomatic.
Another reason could be that despite the high infection rate, they may have never come into contact with the virus, probably due to following extreme isolation measures.
Finally, it could be that their bodies have some extra defense to have been able to successfully repel the virus, whenever they came in contact with it.