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Evaluation of adhesion colonization and entero toxigenicity of vibrio cholerae eltor in enteral infections of intact and passively immunized animals


, : Evaluation of adhesion colonization and entero toxigenicity of vibrio cholerae eltor in enteral infections of intact and passively immunized animals. Zhurnal Mikrobiologii Epidemiologii i Immunobiologii (12): 69-75

V. cholerae eltor was introduced into 323 suckling rabbits through a gastroduodenal tube and into 629 suckling mice either by the same method or per anum by a new specially developed technique. Passive immunization was achieved in suckling mice by the preliminary introduction of antibacterial sera into the small intestine or by feeding them with the milk of female mice immunized at the end of pregnancy. Passive immunization was achieved in suckling rabbits by feeding them with the milk of goats immunized by introducing vibrios through the teats of the udder. To evaluate the results, the accumulation of liquid in the intestine and the development of diarrhea were taken into account, quantitative inoculation of homogenized intestinal matter was made, vibrios on the epithelium of the villi in the small intestine were counted and the changes of enterocytes and the lamina propria observed by light microscopy and EM were considered. The enterotoxigenicity of vibrios was manifested after their adhesion to and later colonization of the intestinal epithelium. Passive antibacterial immunization suppressed their adhesion and colonization, which resulted in protection from the enterotoxigenic effect of vibrios and their elimination from the intestine.


Accession: 005395953

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Related references

Efremov, V.E.; Polotskii, I.E.; Samostrel'skii, A.Iu.; Misnikova, M.A.; Seliverstova, V.G., 1981: Evaluation of the adhesion, colonization and enterotoxigenicity of Vibrio cholerae in the enteral infection of intact and passively immunized newborn animals. V. eltor were introduced into 323 suckling rabbits through a gastro-duodenal tube and into 629 suckling mice either by the same method, or per annum by a new specially developed technique. Passive immunization was achieved in suckling mice by the...

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Smirnova N.I.; Il'ina T.S.; Goncharova N.S.; Adiyatulina N.I.; Smirnov G.B., 1980: Transposon induced genetic rearrangements in vibrio cholerae eltor chromosome and their use for the preliminary genetic mapping of cholera vibrio cholerae eltor. The specificity of integration of the chloramphenicol resistance transposon (Tn9) into the V. cholerae eltor chromosome was studied. As shown by the isolation of auxotrophs with various nutritional requirements, Tn9 displayed a fairly low specific...

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