a novel simian immunodeficiency virus isolated from a schmidt's guenon (cercopithecus ascanius schmidti).a novel simian immunodeficiency virus (siv) was characterized from a schmidt's guenon (cercopithecus ascanius schmidti), which was housed in a local zoo. the virus infection was detected during a routine serological screening for antibodies that were cross-reactive with sivmac antigens. infection with an immunodeficiency virus was confirmed using an inno-lia hiv confirmation assay. using dna isolated from a blot clot, a 1895 nt partial pol sequence was amplified and sequenced. phylogenetic analy ...200414718615
disseminate cryptococcosis in a guenon (cercopithecus ascanius).a 23-year-old captive-bred red-tailed guenon (cercopithecus ascanius) with a brief history of inappetence, lethargy, and seizures was submitted for necropsy. on postmortem examination, multiple cryptococcomas were identified in brain and heart. cryptococcus neoformans organisms were also identified microscopically in kidney, eye, and pancreas. fungal yeast formed rare pseudohyphae. the histologic diagnosis of cryptococcosis was confirmed by a positive test for c. neoformans antigen in a serum sa ...200616407492
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