Revista da Sociedade Brasileira de Medicina Tropical · 2016
Canine antibody response to Lutzomyia longipalpis saliva in endemic area of visceral leishmaniasis.
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Batista Luís Fábio da Silva, Matta Vânia Lúcia Ribeiro da, Tomokane Thaise Yumie, Pacheco Acácio Duarte, Silveira Fernando Tobias, Rossi Claudio Nazaretian, Marcondes Mary, Laurenti Márcia Dalastra
Аннотация
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.
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.