The group of doctors who finished their basic studies in 1962 in the Facultad de Medicina of the Universidad de Chile will never forget the official reception we received when we began the program in March, 1955. It was our first day in the Faculty, and we were received in the Anatomy Auditorium by Dr. Gustavo Hoecker. We soon had him as a professor in the first year Biology course, and in meetings on Saturday afternoons in Borgoño 1470, the site of the former Parasitology Hall of Dr. Amador Neghme. Years later some of us joined forces with Dr. Hoecker in research projects on Chagas disease in which he led the group. We took many field trips to the different endemic areas of the IV Region; Tulahuén, Río Hurtado, El Palqui and Huatulame, among others. We left early in the morning and usually returned late at night. In these interactions I got to know the real Dr. Hoecker; intelligent, lively, discerning and with a great group spirit. When my class of 1962 celebrated our 40 th year as doctors in June, 2002, we did so with a solemn ceremony in the Facultad de Medicina, in the same auditorium where he received us on our first day of classes. In this ceremony we gave recognition to two professors, Gustavo Hoecker and Carlos Oberti (Histology Professor), which faithfully reflected the opinion of his former students. Dr. Hoecker is no longer with us, but his spirit is. In modest homage to him, we dedicate our most recent research on congenital Chagas disease, a subject which united us on more than one occasion.