Indirect infection of cattle with contagious bovine pleuropneumonia.
Hay infected with Mycoplasma mycoides sub-species mycoides (M mycoides) was fed to six animals on three occasions. Five animals developed complement-fixing antibody in their sera and gave a positive reaction to the comparative intradermal allergic test. No animal died from contagious bovine pleuropneumonia (CBPP) but when they were killed, three had unequivocal lesions of the disease. M mycoides was isolated from the animals with these lesions but not from the others. CBPP was transmitted to two animals put in contact with those animals showing disease, and M mycoides was recovered from lesions in both animals. It is suggested that when unexplained outbreaks of CBPP occur, the possibility of indirect transmission should be considered.
D000820:Animal Diseases / Q000635:transmission*; D000821:Animal Feed; D000818:Animals; D002417:Cattle; D002418:Cattle Diseases / Q000382:microbiology / Q000473:pathology / Q000635:transmission*; D005516:Food Microbiology; D008168:Lung / Q000473:pathology; D009176:Mycoplasma mycoides / Q000302:isolation & purification; D011002:Pleuropneumonia, Contagious / Q000382:microbiology / Q000473:pathology / Q000635:transmission*