Study of the Behavior of Some Yersinia enterocolitica Strains Susceptible to Disinfectants and Antibiotics Isolated from Swine
Keywords:antibiotics, disinfectants, susceptible, swine, Yersinia enterocolitica
The species from Yersinia genus are widespread in nature, they could be isolated from warm-blooded and cold-blooded animals, from foods, water and soil. Among genus species, Yersinia enterocolitica is most frequently isolated from human and animals. The resistance of Yersinia enterocolitica is similar to Yersinia pseudotuberculosis. Moreover, it resists to refrigeration temperature (+4°C). It is susceptible to streptomycin, chloramphenicol, tetracyclines, polymyxin B and colistin sulfate. Also, Yersinia enterocolitica is easily inactivated by sodium nitrite and sodium nitrate added in foodstuffs. It still shows some resistance to these salts, in solution, and could tolerate a 5% NaCl concentration in culture media. Toora shows that adding a 5% NaCl in food could lead to a growing rate reduction. In our research we study the behavior of Yersinia enterocolitica strains isolated from swine feces, on different isolation and identification media, chlorine tolerance, but also the behavior against eleven anti-infectious substances (nalidixic acid, furazolidone, erythromycin, tetracycline, gentamicin, streptomycin, ampicillin, kanamycin, cefalotin, trimethoprim and enrofloxacin).
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