Studies on calf viral pneumonia

In the present study, the inciderce of some viruses pneumoenteriti in newly·born calves was investi- This entailed the isola~ion and identification of viral diarrhea-mucosal disease (BVD-ML) virus,enter- type F and parainfluenza-3 (PI-3) virus as well as mucosal disease virus (BVD-MD) was isolated from samDles collected from calves at El-Serw dairy farm (at Domietta; EI-Hawatka dairy farm (at Assuit) and a fattening farm in Qena governorate. Meanwhile, para;;’nfluenza-3 ( PI - 3 ) virus was” isolated from