Regional Veterinary Laboratory report November

摘要

A very high proportion of cases investigated by the laboratory service in November involved respiratory disease. Dublin investigated an outbreak of pneumonia in a 100-cow suckler herd where seven weanlings and three fattening heifers had all died suddenly one month after housing. Three weanlings were necropsied and were found to have gross changes consistent with bronchopneumonia. Mannheima haemolytica and BRSV were detected in one of the three animals, Pasteurella multocida and Mannheima haemolyticawere isolated from each of the remaining two. Using PCR, Cork confirmed a diagnosis of BRSV infection in the case of a six-month-old calf with broncho-interstitial pneumonia. Four other calves from the same group had died with similar clinical histories. Athlone diagnosed BRSV infection in a nine-month-old weanling with a history of respiratory distress. Although PCR results were inconclusive in this case, the histopathological changes encountered were consistent with BRSV infection.