[Rupestrian triatomines infected by Trypanosomatidae, collected in Quaraí, Rio Grande do Sul, 2003].
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.
Martins
Luciamáre Perinetti Alves
LP
Faculdade de Medicina de Marília, Marília, SP, Brazil. luciapam@famema.br
Castanho
Roberto Esteves Pires
RE
Casanova
Cláudio
C
Caravelas
David Tibiriçá
DT
Frias
Guilherme Tardim
GT
Ruas-Neto
Antônio Leite
AL
Rosa
João Aristeu da
JA
D000818:Animals; D005243:Feces / Q000469:parasitology; D005247:Feeding Behavior / Q000502:physiology; D005260:Female; D006801:Humans; D007303:Insect Vectors / Q000469:parasitology*; D008297:Male; D051379:Mice; D009758:Nymph / Q000469:parasitology; D010203:Panstrongylus / Q000469:parasitology* / Q000502:physiology; D011233:Precipitin Tests; D014224:Triatoma / Q000469:parasitology* / Q000502:physiology; D014349:Trypanosoma cruzi / Q000302:isolation & purification; D014351:Trypanosomatina / Q000302:isolation & purification*