The Vibrio cholerae is a gram-negative bacteria (aerobic or facultative anaerobes), having a form of sticks, bent in the form of a comma length 1 to 5 microns, width is 0.3-0.6 microns. The shape and size cholerae can change depending on environmental conditions (appear sticks, spirals, threads, balloons, giant and drugrevenue form). Vibrios are mobile through one or several flagella. Dispute and capsules do not form, quickly multiply on a regular nutrient mediums at the temperature 23-37°alkali resistant and very sensitive to acids and chlorine-based disinfectant preparations. Many varieties and types of vibrios produce enzymes (protease, diastasis and others), thin gelatin rolled fibrin, hemolyticus erythrocytes of different animals, active form alkali. In nature, as a rule, are found in water. A large part of the aquatic cholerae, including phosphorescent, refers to the saprophytes. Cholerae Mechnikov and some other pathogenic in birds and mammals. Sometimes the vibrios were isolated from the faeces healthy individuals or patients with gastroenteritis (pseudohadena, chaeropodidae vibrios).
Vibrio choleraethe Most pathogenic for humans is Vibrio cholerae - exciter Asian cholera (see). Differentiation between cholernie, paragaleria and other vibrios using serological reactions (reaction agglutination with specific serums to certain types cholerae) and sensitivity to kholernomu polyvalent phage. Currently, all the vibrios are separated by the character of agglutination reaction and adsorption of agglutinins into groups a and B.
Cm. also Bacteria.