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Immunohistopathological characterization of pig pneumonia caused by a combined Aujeszky's disease virus and Actinobacillus pleuropneumoniae infection



Immunohistopathological characterization of pig pneumonia caused by a combined Aujeszky's disease virus and Actinobacillus pleuropneumoniae infection



Journal of Comparative Pathology 117(1): 25-33



Nine pigs were inoculated endobronchially with Actinobacillus pleuropneumoniae serotype 1 (App-1) 6 days after infection with Aujeszky's disease virus (ADV); four died within 3 days and the remainder were killed after 1-6 days. Immunohistopathologically, there were two types of pneumonic lesion: pleuropneumonia, characterized by coagulative necrosis, oedema and fibrinous thrombosis; and necrotizing interstitial pneumonia, characterized by bronchitis, bronchiolitis and alveolitis. The former type of lesion was associated with App-1 antigen, and the latter with ADV antigen. These results indicated that a combined ADV and App-1 infection produced severe haemorrhagic pleuropneumonia; and that ADV and App-1 each produced a characteristic pneumonic lesion.

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Accession: 002864918

Download citation: RISBibTeXText

PMID: 9263842

DOI: 10.1016/s0021-9975(97)80064-3



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