Ответить на вопрос : Why can eating uncooked seafood be dangerous for people?

People ate raw seafood for a long time. But in those days they did not know what fire is. In our time of technology, we have no problems with cooking. Therefore, any food, and sea food, including, is better prepared when cooked at high temperatures. Indeed, various parasites and bacteria can live in raw fish and seafood and they can lead a person, who has eaten infected fish, to very serious health problems. For example, in oysters that are eaten raw, a very dangerous bacterium can live, which leads to infection of the blood. Moreover, in our time, the seas and oceans are heavily contaminated with various industrial wastes. Heat treatment, of course, does not remove them, but in any case the dish becomes less dangerous. Therefore, eat seafood cooked.