Pneumonia caused by Rhodococcus equi is often an important problem far hors
e-breeding farms. Control and prevention programs require a systematic appr
oach encompassing three aspects: treating affected foals, screening to dete
ct early disease in asymptomatic foals, and preventing pneumonia caused by
this organism. This article discusses general principles of and specific re
commendations for control and prevention of R, equi-induced pneumonia.