Temporal distribution of Aedes aegypti Linnaeus (Diptera, Culicidae), in a Hospital in Cuiabá, State of Mato Grosso, Brazil

Revista Brasileira de Entomologia

Danilo De Carvalho-leandro²  Ana Lúcia Maria Ribeiro¹  Jorge Senatore Vargas Rodrigues¹  Cleide Maria Riberiro De Albuquerque¹  Anagela Maria Acel¹  Fábio Alexandre Leal-santos¹  Diniz Pereira Leite Jr¹  Rosina Djunko Miyazaki¹ 

[1] ,Departamento de Entomologia Centro de Pesquisas Aggeu Magalhães Recife PE ,Brasil

关键词: Monitoring;    ovitraps;    rainfall;    temperature;    Monitoramento;    ovitrampas;    pluviosidade;    temperatura;   

DOI  :  10.1590/S0085-56262010000400025

来源: SciELO

【 摘 要 】

This study aimed at registering and monitoring the presence of Aedes aegypti in the University Hospital Júlio Muller, Cuiabá-MT, as well as investigating the influence of temperature and rainfall on its temporal distribution and egg densities in ovitraps. The study was performed from April/2007 to March/2008, utilizing ovitraps with 10% of hay infusion and a wood paddle as an oviposition substrate. For surveillance, one ovitrap was placed in each of the 12 points distributed throughout the hospital. Ovitraps were collected monthly at the end of a 5-day installation period. After egg counting, wood paddles were immersed in water to allow larval eclosion for species identification through optical microscopy. Egg Density Index (EDI), Positive Ovitraps Index (POI), and Mean Number of Eggs (MNE) were used for data analysis. The presence of A. aegypti in the hospital was registered throughout the study period, except in July. The MNE was proportionally higher in the internal area (n= 8.47 eggs/paddle) when compared to the external area (n= 5.46 eggs/paddle), and was higher in September/October 2007 and January/February 2008. A significant increase in EDI, POI and MNE was registered in periods where the average temperature was higher, and the increase in POI was also concomitant with an increase in rainfall. The continuous presence of A. aegypti in the hospital throughout the study period, points out the need of including this mosquito in the arthropod control list in this environment. This is particularly important, considering that A. aegypti is an important vector of several arboviroses.

【 授权许可】

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