Studies on the feeding habits of Lutzomyia (N.) intermedia (Diptera, Psychodidae), vector of cutaneous leishmaniasis in Brazil

The precipitin test was applied to identify the blood meal sources of Lutzomyia intermedia, collected in two distinct habitats: inside houses and in the peridomicile, in Mesquita, Rio de Janeiro State, Brazil, a transmission area of Leishmania (V.) braziliensis. The following antisera were tested: h...

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Published in:Cadernos de saúde pública 2005-12, Vol.21 (6), p.1816-1820
Main Authors: Afonso, Margarete Martins Dos Santos, Gomes, Almério Castro, Meneses, Cláudio Roberto Valente, Rangel, Elizabeth Ferreira
Format: Article
Language:English
Subjects:
Animals
Birds
Brazil
Dogs
Feeding Behavior - physiology
Female
Horses
Humans
Insect Vectors - physiology
Leishmaniasis, Cutaneous - transmission
Opossums
Precipitin Tests
Psychodidae - physiology
PUBLIC, ENVIRONMENTAL & OCCUPATIONAL HEALTH
Rodentia
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Summary:The precipitin test was applied to identify the blood meal sources of Lutzomyia intermedia, collected in two distinct habitats: inside houses and in the peridomicile, in Mesquita, Rio de Janeiro State, Brazil, a transmission area of Leishmania (V.) braziliensis. The following antisera were tested: human, avian, equine, rodent, and opossum. From a total of 370 females analyzed, 128 specimens from the domicile and 59 from the peridomicile reacted with specific antisera. The anthropophily of L. intermedia was confirmed in both habitats; likewise, the feeding of this sand fly species on domestic animals, observed in previous entomological surveys, was confirmed by the strong reactivity with avian, canine, and equine antisera. However, feeding on rodents, mammals frequently found inside and around houses, represents further evidence related to the vector competence of L. intermedia, since synanthropic and sylvatic rodents have been considered a putative reservoir of L. (V.) braziliensis.
ISSN:0102-311X
1678-4464
0102-311X
DOI:10.1590/S0102-311X2005000600030