Background: Newborns and infants in parasite endemic regions were vaccinated with the BCG vaccine, Articles showed that Helminth-and Bacillus Calmette-Guerin-induced immunity in children sensitized in utero to filariasis and schistosomiasis. Objective: To observe the immune response after BCG vaccination in infants sensitized in utero to Strongyloides stercoralis, Toxocara canis and Ankylostome "Materials and methods: 323 pregnant women (2007 - 2008) more than five years in Cu Chi were examinated the helminth infection.