Control of visceral leishmaniasis in urban areas: randomized factorial intervention trial

Revista da Sociedade Brasileira de Medicina Tropical

Tapety, Conceição Maria M.¹  Costa, Carlos Henrique Nery¹  Universidade Federal do Rio de Janeiro, Rio de Janeiro¹  Werneck, Guilherme L.¹  Instituto de Doenças Tropicais Natan Portella, Teresina¹  Universidade do Estado do Rio de Janeiro, Rio de Janeiro¹ 

关键词: Visceral leishmaniasis;    Control;    Epidemiology;    Intervention study;   

DOI  :  10.1590/S0037-86822007000400009

学科分类：农业科学（综合）

来源: Sociedade Brasileira de Medicina Tropical

【 摘 要 】

The objective of this study was to evaluate the effect of vector control and elimination of infected dogs on the incidence of infection with Leishmania chagasi. A randomized community intervention trial was carried out in Teresina between 1995 and 1996. The area was divided in 34 blocks randomically allocated to 4 types of intervention: 1) spraying houses and animal pens with insecticide; 2) spraying houses and eliminating infected dogs; 3) combination of spraying houses and animal pens, and eliminating infected dogs, and 4) only spraying houses. In comparison to blocks receiving only household spraying, culling dogs decreased in 80% the incidence of infection. Spraying animal pens, associated or not with culling dogs, showed no significant effect. The protection offered by culling dogs suggests that this strategy might reduce the source of infection for the vector.

【 授权许可】

Unknown