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Infection rates and genotypes of Trypanosoma rangeli and T. cruzi infecting free-ranging Saguinus bicolor (Callitrichidae), a critically endangered primate of the Amazon Rainforest.
- Source :
-
Acta tropica [Acta Trop] 2008 Aug; Vol. 107 (2), pp. 168-73. Date of Electronic Publication: 2008 May 29. - Publication Year :
- 2008
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Abstract
- Parasites of wild primates are important for conservation biology and human health due to their high potential to infect humans. In the Amazon region, non-human primates are commonly infected by Trypanosoma cruzi and T. rangeli, which are also infective to man and several mammals. This is the first survey of trypanosomiasis in a critically endangered species of tamarin, Saguinus bicolor (Callitrichidae), from the Brazilian Amazon Rainforest. Of the 96 free-ranging specimens of S. bicolor examined 45 (46.8%) yielded blood smears positive for trypanosomes. T. rangeli was detected in blood smears of 38 monkeys (39.6%) whereas T. cruzi was never detected. Seven animals (7.3%) presented trypanosomes of the subgenus Megatrypanum. Hemocultures detected 84 positive tamarins (87.5%). Seventy-two of 84 (85.7%) were morphologically diagnosed as T. rangeli and 3 (3.1%) as T. cruzi. Nine tamarins (9.4%) yielded mixed cultures of these two species, which after successive passages generated six cultures exclusively of T. cruzi and two of T. rangeli, with only one culture remaining mixed. Of the 72 cultures positive for T. rangeli, 62 remained as established cultures and were genotyped: 8 were assigned to phylogenetic lineage A (12.9%) and 54 to lineage B (87.1%). Ten established cultures of T. cruzi were genotyped as TCI lineage (100%). Transmission of both trypanosome species, their potential risk to this endangered species and the role of wild primates as reservoirs for trypanosomes infective to humans are discussed.
- Subjects :
- Animals
Brazil epidemiology
Chagas Disease parasitology
Chagas Disease veterinary
Genotype
Polymerase Chain Reaction methods
Prevalence
Trees
Trypanosomiasis epidemiology
Trypanosomiasis parasitology
Animals, Wild parasitology
Conservation of Natural Resources
Monkey Diseases epidemiology
Monkey Diseases parasitology
Saguinus parasitology
Trypanosoma classification
Trypanosoma genetics
Trypanosoma isolation & purification
Trypanosoma pathogenicity
Trypanosoma cruzi classification
Trypanosoma cruzi genetics
Trypanosoma cruzi isolation & purification
Trypanosoma cruzi pathogenicity
Trypanosomiasis veterinary
Subjects
Details
- Language :
- English
- ISSN :
- 0001-706X
- Volume :
- 107
- Issue :
- 2
- Database :
- MEDLINE
- Journal :
- Acta tropica
- Publication Type :
- Academic Journal
- Accession number :
- 18603222
- Full Text :
- https://doi.org/10.1016/j.actatropica.2008.05.015