*Cause of epizootic pneumonia in cattle known as Shipping Fever, Transit Fever or Bovine Pneumonic Pasteurellosis
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*Cause of epizootic pneumonia in cattle known as Shipping Fever, Transit Fever or [[Bacterial infections#Pneumonic pasteurellosis|pneumonic pasteurellosis]]
*Usually secondary to viral infections such as PI3 or [[Viral infections#In Cattle|IBR]], or to mycoplasma
*Usually secondary to viral infections such as PI3 or [[Viral infections#In Cattle|IBR]], or to mycoplasma