SciELO - Scientific Electronic Library Online

 
vol.19 issue5Factors associated with non-participation in screening for cervical cancer in Southern BrazilOral health on the public agenda: an analysis of Municipal Health Council records in cities from the 17th Regional Health Division in the State of Paraná, Brazil author indexsubject indexarticles search
Home Page  

Cadernos de Saúde Pública

Print version ISSN 0102-311X

Abstract

DIAS, Flávio de Oliveira Passos; LOROSA, Elias Seixas  and  REBELO, José Manuel Macário. Blood feeding sources and peridomiciliation of Lutzomyia longipalpis (Lutz & Neiva, 1912) (Psychodidae, Phlebotominae). Cad. Saúde Pública [online]. 2003, vol.19, n.5, pp. 1373-1380. ISSN 0102-311X.  http://dx.doi.org/10.1590/S0102-311X2003000500015.

A precipitin test was employed to study the alimentary tract content of Lutzomyia longipalpis in the intra- and peridomiciliary environments in the municipality of Raposa, Maranhão State, a transmission area for visceral leishmaniasis or kala azar. Out of 2,240 female sandflies captured, 547 (24.4%) had fed on vertebrate blood, with the following proportions: avian (87.9%); rodent (47.2%); human (42.4%); canine (27.6%); opossum (26.6%); and equine (22.5%). Based on a survey of 120 human dwellings, chickens were found to be the most common domestic animals in the peridomicile (28.3%), followed by dogs (21.7%), cats (17.5%), donkeys (13.3%), pigeons (7.5%), rabbits (3.3%), ducks (3.3%), and horses, mallards, and pigs (1.7% each). Synanthropic animals included opossums (39.3%), followed by rats (37.9%), bats (14.3%), raccoons (3.6%), foxes (2.1%), snakes (1.4%), and frogs (1.4%). The peridomiciliary presence of domestic and synanthropic animals as well as sandflies that had fed on human, opossum, and canid blood supports the hypothesis that kala azar transmission has been taking place in the anthropic environment in the municipality of Raposa.

Keywords : Visceral Leishmaniasis; Psychodidae; Vector Control.

        · abstract in Portuguese     · text in Portuguese     · pdf in Portuguese