Xinhuanet Wuhan 20 1 3 1 65438+1October1:According to a survey released by the Wuhan Municipal Health Planning Commission, only1out of every 1000 children in Wuhan is infected with ascaris lumbricoides.
Ascariasis is an infectious disease of digestive tract. Ascaris eggs are contained in the feces of ascaris patients. In the process of fertilization, infected eggs (fertilized eggs) will pollute agricultural products such as vegetables, melons and fruits. If people eat unwashed vegetables, infected eggs will enter people's bodies and get ascaris.
Therefore, choose: B.