Journal
REVISTA DA SOCIEDADE BRASILEIRA DE MEDICINA TROPICAL
Volume 49, Issue 3, Pages 361-364Publisher
SOC BRASILEIRA MEDICINA TROPICAL
DOI: 10.1590/0037-8682-0360-2015
Keywords
Canine leishmaniasis; Anti-Lutzomyia longipalpis saliva antibody; Transmissibility
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Funding
- Sao Paulo Research Foundation (Fundacao de Amparo a Pesquisa do Estado de Sao Paulo - FAPESP) [2012/50285-9]
- Research National Council (Conselho Nacional de Desenvolvimento Cientifico e Tecnologico - CNPq) [301549/2011-7]
- Laboratorio de Investigacao Medica do Hospital das Clinicas da Faculdade de Medicina da Universidade de Sao Paulo [LIM50 HC-FMUSP]
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Introduction: Canine exposure to Lutzomyia longipalpis bites and the potential of Leishmania infantum transmissibility for the vector were evaluated. Methods: Immunoglobulin G (IgG) anti-Lu longipalpis saliva and-L. infantum, and blood parasite load were determined in dogs from endemic areas of visceral leishmaniasis. Results: Blood parasitism was similar between symptomatic and asymptomatic dogs. IgG anti-L. infantum was higher in symptomatic dogs, but IgG anti-Lu. longipalpis saliva was mostly observed in higher titers in asymptomatic dogs, indicating vector preference for feeding on asymptomatic dogs. Conclusions: Our data suggest a pivotal role of asymptomatic dogs in L. infantum transmission in endemic areas.
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