Effectiveness of insecticide-impregnated collars for the control of canine visceral leishmaniasis.

Visceral leishmaniasis is a neglected tropical disease widely distributed worldwide. In Brazil, the control measures adopted in the last decades have not been able to prevent the spread of the disease. This study aimed to evaluate the effectiveness of a population-based intervention using 4% deltamethrin-impregnated dog collars on the incidence of canine visceral leishmaniasis.

Operational difficulties in the use of insecticidal dog collars for the control of visceral leishmaniasis, municipality of Montes Claros, MG, Brazil, 2012.

Objective: to describe operational difficulties in the implementation of deltamethrin-impregnated dog collars for the control of visceral leishmaniasis.

Methods: this was a community intervention trial in the municipality of Montes Claros, MG, Brazil, comparing (i) control area - dogs without dog collars - and (ii) intervention area - use of 4% deltamethrin-impregnated collars; an initial serological survey was performed, followed by three further cycles (at 12, 18 and 24 months).

Results: out of 4,388 dogs initially seronegative wearing collars, 36.

Risk Profiles for Leishmania infantum Infection in Brazil.

The aim of this study was to characterize risk profiles for Leishmania infantum infection in a population living in an area endemic for visceral leishmaniasis. A cohort study was conducted between January 2004 and December 2006 with the participation of 430 individuals living in the city of Teresina, northeast Brazil, who were initially negative for the Montenegro test. Data analysis was performed using the classification and regression tree method.