Cilia-associated respiratory bacillus infection in rats in New Zealand

MK Kakrada Institute of Veterinary, Animal and Biomedical Sciences, Massey University, Palmerston North, New Zealand E-mail: [email protected]

JS Lumsden Institute of Veterinary, Animal and Biomedical Sciences, Massey University, Palmerston North, New Zealand E-mail: [email protected]

EA Lee Institute of Veterinary, Animal and Biomedical Sciences, Massey University, Palmerston North, New Zealand E-mail: [email protected]

MG Collett Institute of Veterinary, Animal and Biomedical Sciences, Massey University, Palmerston North, New Zealand E-mail: [email protected]

Abstract

AIMS: To demonstrate cilia-associated respiratory (CAR) bacillus associated with chronic pneumonia in wild and pet rats in New Zealand.

METHODS: A range of tissues from 4 rats were examined grossly and by light microscopy and affected lungs were examined by transmission electron microscopy.

RESULTS: All 4 rats had moderate to severe cranioventral bronchopneumonia with bronchiectasis and large numbers of argentophilic bacteria resembling CAR bacillus, intimately associated with the bronchial epithelium.

CONCLUSIONS: CAR bacillus infection should be considered as a differential diagnosis for pneumonia in rats in New Zealand.

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Cilia-associated respiratory bacillus infection in rats in New Zealand

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Cilia-associated respiratory bacillus infection in rats in New Zealand

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