Experimental reproduction of the contagious bovine pleuropneumonia in a flock of cattle and goats: clinical and pathological aspects

Abstract

Five cows were inoculated with 3.10' CFU Mycoplasma mycoides subsp. mycoides. Five other cows and five goats were placed in close contact with inocnlated cows. Clinicat observations, serological survey and microbial excretion by culture for mycoplasma from tracheobron­ chial washes liquid were carried out during 4 months. Mycoplasmas excretion is detected before antibodies responses on ail 10 infected cows. The cows never presented clinical respiratory signs and showed no or light Iesions but one animal having typical lesions of acute form of contagious bovine pleuropneumonia. Goats do not seem to be susceptible and play no part in the spreading of the infection.