Assuntos
Doença dos Legionários/epidemiologia , Vigilância da População , Anticorpos Antibacterianos/sangue , Especificidade de Anticorpos , Antígenos de Bactérias/sangue , Surtos de Doenças/estatística & dados numéricos , Epitopos/sangue , Humanos , Legionella pneumophila/imunologia , Doença dos Legionários/imunologia , Fatores de Risco , Federação Russa/epidemiologia , Estudos SoroepidemiológicosRESUMO
The method of the serotyping of strains was used for the epidemiological evaluation of the role of different factors in the transfer of infective agents in 147 cases of diseases and carrier state, caused by NAG vibrios, in Karakalpakia. Out of 150 NAG vibrio strains, 136 strains were serotyped and classified with 26 serovars. The strains were found to belong mostly to serovars 47, 37, 5 and 6 (42.0%). Most of the infected persons (58.5%) used water from open water bodies for household purposes. The role of water factor in the spread of infection was confirmed by a wide spectrum of serologic variants, a low index of the focal outbreaks (1.02), and sporadic pattern of infection. No group morbidity or toxinfection-type outbreaks were recorded.
Assuntos
Vibrioses/transmissão , Vibrio/classificação , Doença Aguda , Fatores Etários , Portador Sadio/epidemiologia , Portador Sadio/microbiologia , Portador Sadio/transmissão , Reservatórios de Doenças , Humanos , Enteropatias/epidemiologia , Enteropatias/microbiologia , Enteropatias/transmissão , Sorotipagem , Uzbequistão , Vibrio/isolamento & purificação , Vibrioses/epidemiologia , Vibrioses/microbiologia , Microbiologia da Água , Abastecimento de ÁguaRESUMO
On household articles contaminated with protein-containing excrements (as in the stool of cholera patients) V. eltor survive 4.6 times longer than on those contaminated with excrements without protein (as in the stool of vibriocarriers ). This is due to a lesser initial dose of vibrios and the absence of protein in the excrements of vibriocarriers . These differences in the survival time of V. eltor on household articles suggest that objects contaminated with the excrements of cholera patients are epidemiologically more dangerous than those contaminated with the excrements of vibriocarriers . The quantitative determination of the survival time of vibrios on household articles indicates that, probably, these articles merely play the role of intermediate factors in the transfer of V. eltor in the foci of cholera.