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Ovine pneumonia
Davies DH
New Zealand Veterinary Journal, Volume 25, Issue 10, p 297, Oct 1977
New Zealand Veterinary Journal, Volume 25, Issue 10, p 297, Oct 1977
Article class: Correspondence
Subject Terms: Bacterial, Disease/defect, Infectious disease, Notifiable organisms/exotic disease, Pneumonia/pleurisy, Respiratory system
Animal Type: Livestock, Production animal, Ruminant, Sheep
Publisher: Taylor and FrancisAbstract
Alley and Clarke suggest that “the evidence available does not favour the view that viruses play a major role in the aetiology of pneumonias” on the basis of the negative evidence that inclusion bodies were not observed in their investigation and unpublished observations that experimentally induced pneumonias were suppressed by antibiotic therapy. However, recent investigations in New Zealand and elsewhere have shown that infection with a number of different types of virus can predispose lambs to bacterial pneumonia although specific virus-induced lesions are not usually visible at post-mortem. These viruses are adenoviruses, parainfluenza virus type 3 and reovirusesr. Experimental virus infections will allow a low and otherwise innocuous dose of P. haemolytica to cause pneumonia in lambs. Nevertheless, the hosts` defences can be overcome by large doses of bacteria alone or suspensions of diseased lung tissue given by aerosol or the intratracheal route…The whole of the literary matter of the New Zealand Veterinary Journal is copyright Taylor and Francis, Downloading this article signifies agreement with the terms and conditions of electronic access.