КРУЗ Уолтер
Walter Osvaldo Cruz (Petrópolis, 23 de janeiro de 1910 — Rio de Janeiro, 3 de janeirode 1967), filho de Oswaldo Gonçalves Cruz, foi um médico, cientista e enxadristabrasileiro. He was Brazilian champion in 1938, 1940, 1942, 1948, 1949 and 1953. Son of Oswaldo Cruz (a very respected sanitarist) and brother of Oswaldo Cruz Filho. Walter was a hematologist and presided over the Osvaldo Cruz Institute (an epidemiological center).