Resumen

MARTINS, Luciamáre Perinetti Alves et al. Rupestrian triatomines infected by Trypanosomatidae, collected in Quaraí, Rio Grande do Sul, 2003. Rev. Soc. Bras. Med. Trop. [online]. 2006, vol.39, n.2, pp. 198-202. ISSN 0037-8682.  http://dx.doi.org/10.1590/S0037-86822006000200013.

Rupestrian triatomines were captured in six Quaraí city localities, RS, to verify the level of Trypanosomatidae infection, as well as the animal reservoir. The capture occurred in a wild environment and 453 samples were collected, which were identified and separated by nymphal instar. 421 (92.9%) samples of Triatoma rubrovaria, 26 (5.7%) of Triatoma circummaculata and 6 (1.3%) of Panstrongylus tupynambai were collected. Only 13 samples (4.2%) of Triatoma rubrovaria presented Trypanosomatidae infection. After mice and LIT culture inoculation, five strains of Trypanosoma cruzi were isolated. Of these triatomines, 4 (30.8%) displayed no reagent precipitin for the antiserum tested, 4 (30.8%) were positive for rodent antiserum, 4 (30.8%) were positive for goat antiserum and 1 (7.7%) were positive for human and pig antiserum.

Palabras llave : Trypanosomatidae; Trypanosoma cruzi; Triatoma rubrovaria; Reservoirs; Rio Grande do Sul.