I am currently in the maritimes of Canada and I went to take a swim because it was really hot yesterday. I went to a public beach and I was one of about 10 white people. The rest were people who look like they were from Senegal with names that are pronounced using Morse code clicks and panjeet/panjeeta whose children were screaming like they were being stabbed to death. What I found amusing about one particular panjeet Jr was he was eating chopped up watermelon out of a plastic tray in the water. That itself is a little odd but the funny thing about it was he was playing and lake water was getting into the tray and he didn't even care. The amount of protozoa that got into his stomach would make his sewer treating uncle back in Hyderabad proud.
They can survive drinking their own polluted water in India. There aren't any lakes anywhere in the world that have water dirty enough to kill them. They are like cockroaches.