The optimal immunizing dose of the vaccine strain of B. abortus 82-Sr for guinea pigs

Tested on guinea pigs different immunizing doses of the antibiotic resistance of strain B. abortus 82-Sr. The optimum dose in the amount of 1, 5 billion microbial cells. Shows a weak agglutinogens vaccine and the ability to differentiate vaccinated sick animals from healthy patients infected with the culture of a virulent strain of brucella.