Peer-reviewed veterinary case report
Lutzomyia longipalpis flies and dog leishmaniasis found in rural Ilha
By Spada, Julio Cesar Pereira et al.·Published in Revista brasileira de parasitologia veterinaria = Brazilian journal of veterinary parasitology : Orgao Oficial do Colegio Brasileiro de Parasitologia Veterinaria·2014·Departamento de Biologia e Zootecnia·View original on PubMed →
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Original publication title: Occurrence of Lutzomyia longipalpis (Phlebotominae) and canine visceral leishmaniasis in a rural area of Ilha Solteira, SP, Brazil.
- Species:
- dog
Plain-English summary
A group of 32 dogs from rural properties in Brazil was tested for canine visceral leishmaniasis (CVL), a serious disease spread by sandflies. About 31% of these dogs tested positive for CVL, and the sandfly species Lutzomyia longipalpis was found in all the properties surveyed. The presence of these sandflies was noted to increase after rainy periods, but the study did not find a strong link between weather conditions and the number of CVL cases. This highlights the need for better control measures to protect dogs in these areas from this disease.
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Abstract
This study aimed to investigate the occurrence of Lutzomyia longipalpis and also the canine visceral leishmaniasis (CVL) in a rural area of Ilha Solteira, state of São Paulo. Blood samples were collected from 32 dogs from different rural properties (small farms) and were analyzed by ELISA and the indirect immunofluorescence antibody test (IFAT) in order to diagnose CVL. From these serological tests, 31.25% of the dogs were positive for CVL and these were distributed in 66.7% (8/12) of the rural properties, which were positive for L. longipalpis. CDC (Center for Disease Control and Prevention) light traps were installed in 12 properties (one per property) and insects were caught on three consecutive days per month for one year. L. longipalpis was present on 100% of the rural properties visited, at least once during the twelve-month interval, totaling 64 males and 25 females. The insects were more numerous after the peak of the rain, but the association between prevalence of peridomestic vectors and the climatic data (precipitation, relative air humidity and temperature) and the occurrences of CVL among dogs on each rural property were not statistical significant (p <0.05). However, the occurrence of CVL cases in dogs and the presence of L. longipalpis indicate that more attention is necessairy for the control of this disease in the rural area studied.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/25517523/