Oswaldo Cruz Filho Oswaldo Cruz Filho Oswaldo Cruz Filho (1902/03 in Rio de Janeiro – ?) was a Brazilian chess master. He represented Brazil in 3rd unofficial Chess Olympiad at Munich 1936, in the 8th Chess Olympiad at Buenos Aires 1939 and the 10th Chess Olympiad at Helsinki 1952. He participated in many tournaments played in Rio de Janeiro; shared 3rd with Walter Oswaldo Cruz in 1943 ("Campeonato do CXRJ", Erich Eliskases won), took 2nd in 1943 ("Quadrangular Clube Ginastico Portugues", Eliskases won), took 9th in 1946 (Miguel Najdorf won), took 2nd, behind W. Cruz, in 1948 (the 16th Brazilian Chess Championship), tied
Oswaldo Cruz existed since 1837 but had never been put into practice. Therefore, on June 9, 1904, following a proposal by Oswaldo Cruz, the government presented a bill to the Congress requesting the reestablishment of obligatory smallpox vaccination. The extremely rigid and severe provisions of this instrument terrified the people. Popular opposition against Cruz increased sharply and opposition newspapers started a violent campaign against this and the federal government in general. Members of the parliament and labor unions protested. An anti-vaccination league was organized. On November 10, the Vaccine Revolt exploded in Rio. Violent confrontations with the police ensued, with strikes, barricades,