bronchopneumonia not to be reproduced
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BronchopneumoniaBronchopneumonia
NOT TO BE REPRODUCED
SequestraSequestra Post BronchopneumoniaPost Bronchopneumonia
NOT TO BE REPRODUCED
Pulmonary Pulmonary AbscessesAbscesses
NOT TO BE REPRODUCED
Rhodococcus equiRhodococcus equi
Facultative intracellular Gram positive organism Facultative intracellular Gram positive organism Plasmid encoded virulence factorsPlasmid encoded virulence factorsSurvives in macrophagesSurvives in macrophages
Important worldwide cause of morbidity and Important worldwide cause of morbidity and mortalitymortalityEnzootic on farms Enzootic on farms –– soil and fecessoil and fecesPrimarily affects Primarily affects
Foals 1Foals 1--6 month 6 month Older Older immunosuppressedimmunosuppressed horseshorses
NOT TO BE REPRODUCED
Rhodococcus equiRhodococcus equi
Disease Disease -- sporadicsporadicRespiratory Respiratory -- alwaysalwaysEnteric Enteric –– ulcerative ulcerative enterocolitisenterocolitis -- sometimessometimesDisseminated occasionallyDisseminated occasionally
Pathogenesis Pathogenesis –– aerogenousaerogenous, infected sputum , infected sputum to intestines (?) to intestines (?)
NOT TO BE REPRODUCED
Rhodococcus equiRhodococcus equi
Pulmonary pathologyPulmonary pathologyAcute Acute -- anteroventralanteroventral suppurative suppurative bronchopneumonia followed bybronchopneumonia followed byAbscesses progress to Abscesses progress to pyogranulomatouspyogranulomatous pneumonia pneumonia with with caseouscaseous necrosisnecrosisChronic Chronic –– large coalescing large coalescing caseouscaseous masses masses surrounded by fibrous tissuesurrounded by fibrous tissue
NOT TO BE REPRODUCED
RhodococcusRhodococcus equiequi ––Bronchopneumonia with abscessesBronchopneumonia with abscesses
NOT TO BE REPRODUCED
RhodococcusRhodococcus equiequiBronchopneumonia with abscessesBronchopneumonia with abscesses
NOT TO BE REPRODUCED
RhodococcusRhodococcus equiequiBronchopneumonia with abscessesBronchopneumonia with abscesses
NOT TO BE REPRODUCED
MycobacteriosisMycobacteriosis
Mycobacterium Mycobacterium bovisbovis, tuberculosis , tuberculosis and and aviumavium complexcomplexIngestion followed by Ingestion followed by hematogenoushematogenousdisseminationdisseminationPulmonary Pulmonary granulomasgranulomas without calcification or without calcification or necrosisnecrosis
NOT TO BE REPRODUCED