ABSTRACT
Group cases of pseudotuberculosis, first registered at health-restoring institutions of the health resort of Gelendzhik (the Krasnodar Territory), are described. The etiology of these cases of the disease was established on the basis of clinico-epidemiological data, specific seroconversion in 66% of the examined patients and the isolation of Yersinia pseudotuberculosis strains from the feces of four patients. The combination of signs observed in the isolated strains, viz. the presence of plasmids with molecular weights of 75 and 45 MD, resistance to bactericidal factors of normal human serum and autoagglutination in cell culture medium, made it possible to consider these strains to be virulent. The cases of infection were probably caused by the use of fresh cabbage salad. The study of 3,128 rodents caught in the Krasnodar Territory, including those caught in the area of the health resort, resulted in the isolation of 105 Y. enterocolitica strains and strains of 5 other Yersinia species, but not Y. pseudotuberculosis strains. The concept on the saprozoonotic nature of pseudotuberculosis was substantiated.
Subject(s)
Disease Outbreaks/statistics & numerical data , Yersinia pseudotuberculosis Infections/epidemiology , Yersinia pseudotuberculosis/isolation & purification , Antibodies, Bacterial/blood , Camping , Child , Disease Reservoirs , Food Microbiology , Health Resorts , Humans , Russia/epidemiology , Seasons , Yersinia pseudotuberculosis/immunology , Yersinia pseudotuberculosis Infections/etiology , Yersinia pseudotuberculosis Infections/microbiologyABSTRACT
During the period of 4 years 558 halophil vibrio strains (258 V. parahaemolyticus strains and 300 V. angiolyticus strains) were isolated from the water and from the representatives of the hydrobios of the Black Sea. The vibrios were isolated the whole year round, but during the winter and spring months their lowest concentration in water was observed, while in September-October it reached its maximum. During these 4 years 102 cases of gastroenteric diseases were registered, and in some of the patients halophil vibrios were isolated. In most cases the diseases developed after the consumption of sea fish and other sea products, as well as salted vegetables. The diseases had mainly a sporadic character. 90% of the strains isolated from humans belonged to serotypes O4 : K12 and O4 : K8; besides, the presence of serotypes O3 : K33, O3 : K57, O5 : K47, O6 : K46 and O10 : K52 was revealed.
Subject(s)
Gastrointestinal Diseases/microbiology , Vibrio/isolation & purification , Water Microbiology , Acute Disease , Animals , Fishes , Foodborne Diseases/epidemiology , Gastrointestinal Diseases/etiology , Humans , Russia , Seasons , Vegetables , Vibrio/pathogenicity , Vibrio parahaemolyticusSubject(s)
Anti-Bacterial Agents/pharmacology , Seawater , Vibrio/drug effects , Acute Disease , Animals , Chronic Disease , Fishes/microbiology , Gastrointestinal Diseases/microbiology , Humans , Microbial Sensitivity Tests , USSR , Vibrio/isolation & purification , Vibrio parahaemolyticus/drug effectsABSTRACT
Galophilic vibrios were for the first time in the Soviet Union isolated from the patients with gastrointestinal diseases in Novorossiisk during the summer-autumn period of 1973. The greatest number of strains of the parahemolytic vibrios was isolated in August and September, during intensive fishing season, from the patients in whom the disease usually developed 6 to 12 hours after eating the sea fish. The parahemolytic vibrios isolated from the patients were typical by all signs and produced a marked hemolysis on the Wagatsuma medium. The halophilic vibrios are inhabitants of the Black Sea. During the years of 1972-1973 there were isolated 109 strains of V. paraheamolyticus and 133 strains of V. alginolyticus from the sea water and various hydrobionts.
