Effect of untreated bed nets on blood-fed Phlebotomus argentipes in kala-azar endemic foci in Nepal and India

Memórias do Instituto Oswaldo Cruz

Albert Picado²  Vijay Kumar¹  Murari Das¹  Ian Burniston²  Lalita Roy¹  Rijal Suman¹  Diwakar Dinesh¹  Marc Coosemans¹  Shyam Sundar¹  Kesari Shreekant¹  Marleen Boelaert¹  Clive Davies²  Mary Cameron² 

[1] ,London School of Hygiene and Tropical MedicineLondon,UK

关键词: untreated nets;    Phlebotomus argentipes;    visceral leishmaniasis;    HBI;   

DOI  :  10.1590/S0074-02762009000800018

来源: SciELO

【 摘 要 】

Observational studies in the Indian subcontinent have shown that untreated nets may be protective against visceral leishmaniasis (VL). In this study, we evaluated the effect of untreated nets on the blood feeding rates of Phlebotomus argentipes as well as the human blood index (HBI) in VL endemic villages in India and Nepal. The study had a "before and after intervention" design in 58 households in six clusters. The use of untreated nets reduced the blood feeding rate by 85% (95% CI 76.5-91.1%) and the HBI by 42.2% (95% CI 11.1-62.5%). These results provide circumstantial evidence that untreated nets may provide some degree of personal protection against sand fly bites.

【 授权许可】

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