Canine visceral leishmaniasis: dog infectivity to sand flies from non-endemic areas

Travi, Bruno L.; Ferro, C.; Cadena, Horacio; Lerma, James Montoya; Adler, Gregory H.

doi:10.1053/rvsc.2001.0527

Cited by 71 publications

(56 citation statements)

References 19 publications

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Section: Discussionmentioning

confidence: 99%

“…shannoni became infected with L. infantum after feeding on L. infantum –infected dogs ( 16 ). Investigators hypothesized that these insects were competent vectors and could initiate new enzootic cycles of Leishmania transmission in areas where infected animals were introduced (e.g., North America) ( 16 ). As the reservoir of infection in canine hosts becomes larger and more dispersed, the possibility increases that conditions will lead to exposure of competent vectors and subsequent vectorborne transmission.…”

Section: Discussionmentioning

confidence: 99%

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Canine Visceral Leishmaniasis, United States and Canada, 2000–2003

Duprey

Steurer

Rooney

et al. 2006

Emerg. Infect. Dis.

174

173

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Canine Visceral Leishmaniasis, United States and Canada, 2000–2003

Duprey

Steurer

Rooney

et al. 2006

Emerg. Infect. Dis.

174

173

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“…Nevertheless, the observations made on these two dogs contrasted with xenodiagnoses performed on dogs infected with L. infantum in which parasites are readily transmitted to sand flies, including non-natural vector species (20)(21)(22). In our case, the low reservoir competence was emphasized by the negative results obtained with Lutzomyia trapidoi, L. gomezi, and L. youngi, which are proven vectors of cutaneous leishmaniasis (13,15), and have shown to acquire Leishmania at high rates (37-44%) after feeding on laboratory animals experimentally infected with L. Viannia (23; CIDEIM unpublished).…”

Section: Discussionmentioning

confidence: 88%

Leishmania (Viannia) braziliensis infection in two Colombian dogs: a note on infectivity for sand flies and response to treatment

2012

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Introduction. Although canine cutaneous leishmaniasis has been reported in several foci of South America, no published information from Colombia is available. Objective. We report on two cases found in the Pacific coast region of this country, which presented as a single scrotal ulcer in one dog, and two ulcers on the external surface of the ear in a second dog. Materials and methods. Parasites were isolated by culture in Senekjie's culture medium and identified using monoclonal antibodies. The capacity of these dogs to transmit the parasites to sand fly vectors (Lutzomyia trapidoi, Lutzomyia gomezi, Lutzomyia longipalpis, Lutzomyia youngi) was tested by allowing the flies to feed on the lesion borders. Results. Both isolates were identified as Leishmania (Viannia) braziliensis. No infections were detected upon dissection of engorged flies. A single peri-and sub-lesional injection of 1-2 ml of pentavalent antimony in the dog with ear lesions resulted in clinical cure 6 weeks post-treatment. Conclusions. These observations suggest that although dogs are susceptible to L. braziliensis, their reservoir competence could be low. However, if further studies indicate that canines are capable reservoir hosts of L. Viannia spp., the local treatment of lesions could become a feasible approach to diminish the risk of human infection in the peridomestic setting, without sacrificing infected dogs.

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“…No cão, a infecção por L. infantum é considerada uma enfermidade crônica, presente em vários continentes (TRAVI et al, 2002;LIMA et al, 2003;CARDOSO et al, 2007), representando um grande problema de saúde pública, particularmente pela presença de animais assintomáticos (COSTA, 2008).…”

Section: Introductionunclassified