[Screening and congenital transmission of Chagas Disease in the user population of the Dr. Félix Bulnes Cerda Hospital and Primary Health Care Services of the Metropolitan Health Service West of Santiago, Chile].

Background: In 2016, the Hospital Dr. Félix Bulnes Cerda (HDFBC) implemented the mandatory screening of anti Trypanosoma cruzi antibodies in pregnant women, thus complying with national regulations to detect new Chagas disease cases (CHD) in mother and child, whose early detection mediates timely pharmacological treatment. This, because the congenital transmission continues the main active transmission mechanisms of T.