I put forward a thought experiment as it is just that. It's based upon a thought I had. Nothing more.
So what is your explanation of their initial escape? I suspect that lockdown has something to do with it, it might have been dumb but it did something.
It probably is diabetes. 10% of Indians are
diagnosed diabetic. Many many aren't diagnose and in Bihar I suspect few are. Remember you don't have to be fat to be diabetic. In the western world, there is a 50:50 ratio between fat and skinny people with T2 diabetes. Some people get belly fat, some people get subcutaneous fat. It's the belly fat that's the problem category.
How to cure type 2 diabetes – without medication
It doesn't take many people to overwhelm a health system, esp if there isn't one.