In the 1970s and 1980s, almost everyone had roundworms in their stomachs, but now no one is infected with them

In the 1970s and 1980s, almost everyone had roundworms in their stomachs, but now no one is infected with them

Ascaris lumbricoides is a type of nematode that parasitizes in the human intestine and is also one of the common parasites. Ascaris lumbricoides mainly enters the human body through the mouth and parasitizes in the small intestine...