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Na presente investigação, os autores estudaram a distribuição dos lisótipos Ví, tipos fermentativos e tetrationato-redutase, em 110 amostras de Salmonella typhi, isoladas no período de 1966-1970, no Estado da Guanabara. Para estabelecer uma melhor configuração epidemiológica dos resultados, fez-se a divisão do Estado em seis regiões, respectivamente as zonas Sul, Centro, Norte, da E. F. Central, da E. F. Leopoldina e rural. Obteve-se no cômputo geral, a prevalência dos lisótipos A (59,09%), E 1a (19,09%), T (7,27%) e amostras Vi negativas (4,55%). Verificou-se ainda, que cerca de 70,90% das culturas foram classificadas no tipo fermentativo II, segundo esquema de Kristensen e 95,42% das amostras revelaram-se positivas na prova de detecção da tetrationato-redutase. In the present investigation, the authors have studied the distribution of lysotypes, fermentative types and tetrathionate- reductase in 110 strains of Salmonella typhi, isolated from hemocultures during the period 1966-1970, in the State of Guanabara, Brazil. In order to establish a better epidemiological configuration of the results, this study has been divided and effected in the six following regions: south, middle, north at the Central Railway, the Leopoldina Railway and the rural district. As a general outcome a predomination of the lysotypes A, E 1a, T and negative Vi strains has been obtained. It has stil been verified that 70,90% of the cultures were classified fermentative type Ii and that 95,42% of the strains were tetrathionate-reductase positives

Lisotipia Vi e classificação bioquímica de amostras de Salmonella typhi isoladas no Estado da Guanabara