[Source of Chagas disease in Arcádia, state of Rio de Janeiro, Brazil].
Following the report of triatomine nymphs in a house in Arcadia, Miguel Pereira, state of Rio de Janeiro, Brazil, the infested dwelling was checked. Several eggs and 46 specimens of Triatoma vitticeps (Stal, 1859) were collected. Among them, adults and nymphal instars accounted for 43.5% and 56.5%, respectively. Analysis of blood meals showed the ecletism of this species; 24 (52.2%) were single feeds, 18 insects (39.1%) fed on two hosts and 4 (8.7%) on three hosts. Trypanosoma cruzi infection rate of examined specimens was 13%. Finally one of the residents of the house was positive for anti-T. cruzi antibodies using indirect immunofluorescence.
Lorosa
Elias Seixas
ES
Departamento de Entomologia, Instituto Oswaldo Cruz, Fiocruz, Rio de Janeiro, RJ, 21045-900, Brasil. lorosa@ioc.fiocruz.br
Valente
Márcio Valério Monteiro Pinto
MV
Cunha
Vanda
V
Lent
Herman
H
Jurberg
José
J
D000818:Animals; D001717:Birds; D001938:Brazil; D014355:Chagas Disease / Q000635:transmission; D004285:Dogs; D004797:Enzyme-Linked Immunosorbent Assay; D005247:Feeding Behavior / Q000502:physiology; D005260:Female; D019084:Fluorescent Antibody Technique, Indirect; D006801:Humans; D007303:Insect Vectors / Q000469:parasitology / Q000502:physiology*; D008297:Male; D012377:Rodentia; D014224:Triatoma / Q000469:parasitology / Q000502:physiology*; D014349:Trypanosoma cruzi