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Emerg Infect Dis. 2009 Feb;15(2):175-84.

Simian T-lymphotropic virus diversity among nonhuman primates, Cameroon.

Author information

1
Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA.

Abstract

Cross-species transmission of retroviruses is common in Cameroon. To determine risk for simian T-cell lymphotropic virus (STLV) transmission from nonhuman primates to hunters, we examined 170 hunter-collected dried blood spots (DBS) from 12 species for STLV. PCR with generic tax and group-specific long terminal repeat primers showed that 12 (7%) specimens from 4 nonhuman primate species were infected with STLV. Phylogenetic analyses showed broad diversity of STLV, including novel STLV-1 and STLV-3 sequences and a highly divergent STLV-3 subtype found in Cercopithecus mona and C. nictitans monkeys. Screening of peripheral blood mononuclear cell DNA from 63 HTLV-seroreactive, PCR-negative hunters did not identify human infections with this divergent STLV-3. Therefore, hunter-collected DBS can effectively capture STLV diversity at the point where pathogen spillover occurs. Broad screening using this relatively easy collection strategy has potential for large-scale monitoring of retrovirus cross-species transmission among highly exposed human populations.

PMID:
19193260
PMCID:
PMC2657614
DOI:
10.3201/eid1502.080584
[Indexed for MEDLINE]
Free PMC Article

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