[Screening of hepatitis B in high risk Chilean and immigrant pregnant women: Management of mother to child transmission].

Background: Chile is a low-endemic HBV country, but countries with the highest migratory flow to Chile have an intermediate-high endemicity. In order to avoid vertical transmission of HBV, immunoprophylaxis (IP) in the newborn (NB) is a key factor.

Aim: To identify HBsAg prevalence in pregnant immigrants and Chilean pregnant women with risk behaviors (RB) and to asses IP use in the NB.