Caprine pneumonia IV: Pathogenicity of Mycoplasma mycoides subspecies capri and caprine strains of Mycoplasma mycoides subsp. mycoides for goats

Abstract M. mycoides subsp. mycoides and M. mycoides subsp. capri were both shown to be pathogenic to goats experimentally infected by the endobronchial route. The infected animals were dull, unable to eat and had a high temperature. The mean mortality rate for all the infected animals was 74 per cent., the highest mortality being 100 per cent. for animals infected with the Smith strain of M. capri . Gross lesions were confined to the lungs, the pleura and the pericardium. Histologically the important lesions were congested alveolar septae, acute pyogenic bronchopneumonia and acute purulent pleurisy.