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OJVRTM
Online
Journal of Veterinary Research©
Volume 16 (6): 305-313, 2012. Redacted 2017.
Pathological and PCR profile
of a high mortality canary poxvirus (CAPV) outbreak.
Vahid Reza Ranjbar1٭, Monire
Khordadmehr2, Azizollah Khodakaram- Tafti2, Mehdi Namavari3
1Department of Avian Medicine and 2Pathology
School of Veterinary Medicine, Shiraz University and 3Razi Vaccine
and Serum Research Institute, Shiraz, Iran
ABSTRACT
Ranjbar
VR, Khordadmehr M, Khodakaram-Tafti
A, Namavari M., Pathological and PCR profile of high
mortality canary poxvirus (CAPV) outbreak, Online J Vet Res., 16 (6): 305-313, 2012. Canary poxyvirus
(CAPV) is a highly infectious disease which may result in 100% mortality.
Pathological and molecular findings taken from 200 colored-breeder canaries
affected by CAPV with a mortality rate of 98.5% are reported. Prior to death,
severe conjunctivitis, dyspnoea, anorexia, weakness,
rapid loss of weight, fluffed-up appearance and cutaneous proliferative lesions
around the eyes and the beak occurred. At necropsy cutaneous lesions around the
eyes and/or base of the beak were characterized by epidermal hypertrophy and
hyperplasia with degeneration of the stratified squamous epithelium.
Intracytoplasmic inclusions in hypertrophied epithelial cells with typical
Bollinger bodies occurred. Edema, hyperemia and hemorrhages in the lungs and
fibrinous pneumonitis was observed. PCR results
revealed 578 base pairs (bp) pox virus DNA present in
eyelids, skin and lung. However, PCR did not reveal pox virus DNA in liver or
cardiac tissues.
Keywords: pox virus, cutaneuos
lesions, Bollinger bodies, PCR.
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