He was born in Rio de Janeiro, the eldest son of Carlos Chagas (1879-1934), noted physician and scientist who discovered Chagas disease, and brother of Carlos Chagas Filho (1910-2000), also a noted physician and scientist who was president of the Pontifical Academy of Sciences.
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In 1931 he held the position of Human Pathology Section (in Portuguese: Seção de Patologia Humana) of the Instituto Oswaldo Cruz and, in 1935, represented the institution at the Ninth Meeting of the Argentine Society of Pathology North Regional, held in the city of Mendoza to honor the memory of Carlos Chagas, newly deceased.
Chagas disease | Carlos Chagas | Sencer points to a depiction of ''Triatomine sp.'', which transmits Chagas disease | Marinho Chagas | Marco Chagas |