At first, the dog didn't eat, just drank water, vomited, became thinner, pulled a red water sample behind him and died in a few days. Why?

Hello. This is a typical parvovirus. You can learn more about parvovirus. Besides, your family may not have another dog for 3-6 months. Otherwise, it will be infected. Parvovirus is transmitted through excrement and air. Very impressive. To put it bluntly, it is equal to dog cancer. Not easy to cure! !