Distribuição geográfica dos principais vetores de endemias no Estado do Ceará. - I - Triatomíneos

Abstract

São apresentadas as principais informações de ordem geográfica do EstadoEmbora a semi-aridez constitua traço mar cante do espaço físico cearense, os contrastes topográficos existentes dão origem a condições geográficas particulares. Serras, sertões, chapa das e várzeas de aluvião compõem os quadros geo-econômicos regionais. Os sertões constituí dos por depressões de fracas altitudes, com precipitações escassas e concentradas, solos rasos e caatingas que, desde o passado, foram ocupadas pelo gado. Contrastando com a topo grafia rebaixada dos sertões erguem-se as serras, serrotes e chapadas como áreas verdejantes, de precipitações pluviométricas mais abundantes e mais distribuídas, com vegetação floral e solos tropicais. De economia complementar, serras e sertões compõem os principais quadros do espaço geo-econômico cearense, completados

Surveillance of Chagas disease vectors in municipalities of the state of Ceará, Brazil

“…Previous studies have put an emphasis on the process of domestication of triatomines in different regions of Northeastern Brazil, thus providing a warning about future public health problems (Alencar et al 1976, Dias et al 2000, Costa et al 2003, Sarquis et al 2004, 2006.…”

Epidemiology of Chagas disease in Jaguaruana, Ceará, Brazil. I. Presence of triatomines and index of Trypanosoma cruzi infection in four localities of a rural area

“…In the distribution ranking, the third species in Ceará was Panstrongylus megistus, displaying a variable infection index; this species was found in 61.7% of the municipal districts. Rhodnius nasutus, with an average of 1% infection index, was found in 17.7% of the municipal districts; Panstrongylus lutzi was found in 18.4% of the municipal districts, presenting an average of 17.9% of infection indexes (Alencar et al 1976). …”

“…Alencar et al (1976) have demonstrated that vectors have not been found in only 9 out of the 141 municipal districts that comprise the geographic division of the whole state of Ceará. The authors have cited the semi-domestic Triatoma brasiliensis as being a primary transmitting species and with larger distribution in that state, found in 91.5% houses of municipal districts, many times with high Trypanosoma cruzi infection indexes.…”

Wild Habitat and Related Fauna of <I>Panstrongylus lutzi</I> (Reduviidae, Triatominae)

“…The reports of only adult forms invading human dwellings mean that this vector is not established in domiciliary structures. Consequently, and although its T. cruzi infection rate may be high, P. lutzi cannot be considered as a vector of epidemiological importance in Northeastern Brazil (Lucena 1958, Alencar et al 1976). …”