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Simian T-lymphotropic virus type I infection among wild-caught Indonesian pig-tailed macaques (Macaca nemestrina).

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Department of Immunology, U.S. Naval Medical Research Unit No. 2, Jakarta, Indonesia.


Evidence for the presence of simian T-lymphotropic viruses (STLV-I) was identified in live-caught pig-tailed macaques from two locations in southern Sumatra, Indonesia. Of 60 animals tested, 13.3% of the animals showed seroreactivity to HTLV-I/II enzyme-linked immunosorbent assay (ELISA) antigens. Of these, 75% showed indeterminate reactivity and 25% showed positive reactivity to HTLV-I/II Western blot antigens. Polymerase chain reaction (PCR) analysis of 6 of 8 seroreactive monkeys' peripheral blood mononuclear cell (PBMC) DNA showed production of proper size molecular weight product that hybridized specifically to an STLV-I tax gene-specific probe. Phylogenic analyses of tax gene fragment sequences from the PCR products of two samples, 930287 and 930306, indicated that these animals were infected with retroviruses related to those of the Asian STLV-I clade.

[Indexed for MEDLINE]

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