牛肺虫病的一些主要鉴别诊断

Viral infections

Bovine herpesvirus 1, bovine viral diarrhea virus, bovine respiratory syncytial virus, bovine coronavirus, parainfluenza 3 virus, adenovirus

Bacterial infections

M haemolytica, P multocida, H somni, M bovis, T pyogenes

Toxicities

3-methyl-indole, moldy sweet potato, perilla ketone