Abstract

CRUZ G, Carmen; VALLE T, Jorge  and  RUIZ M, Alex. Determinación de los hábitos de An. Pseudopunctipennis y An. Calderoni en dos localidades del valle de Chao. La Libertad, Perú. Rev. perú. med. exp. salud publica [online]. 2004, vol.21, n.4, pp.223-230. ISSN 1726-4634.

Objectives: To determine the habits of malaria vectors in two communities in Chao valley (San Carlos and Santa Rita Bajo), la Libertad, Peru. Materials and methods: During june 2001 to march 2002, a cross-sectional study was performed in order to know, using quantitative and qualitative methods the habits of the main malaria vectors, considering the following parameters: Anopheles density, parity index, feeding and resting habits. Results: A. calderoni and A. pseudopunctipennis species were colected, and it is worth mentioning that no A. albimanus were found. Parity index exceeded 60% for both species, and it reached its maximum value in San Carlos. Anthropophilia was a variable that was confounded by the presence of animal refuges near human houses, and maximum hematophagic activity was between 22.00 and 24.00 for both species. In both areas studied, A. pseudopunctipennis had a higher endophilia degree, which, together with its parity index, increased its importance for transmission. Preferred resting places for mosquitoes within households were walls and ceilings, and in the peridomiciliary areas were walls and animal refuges. Conclusion: The study allowed us to know the behavior of the main malaria vector in Chao valley, and it is necessary to propose new research with the objective of designing instruments for selecting best vector control measures or malaria prevention in this area.

Keywords : Malaria; Vector control; Anopheles.

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