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Polyomavirus was diagnosed in a canary (Serinus canaria) colony with signs of debilitation and mortality among young (mostly six-weeks-old) and adult birds, which rarely survived longer than two years. The main pathological changes in necropsied canaries were splenomegaly, hepatomegaly, and kidney swelling. Microscopically, intranuclear inclusion bodies were observed in the liver and kidneys. Necrotic...
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