Article
Detection and quantification of Leishmania braziliensis in ectoparasites from dogs
Registro en:
MORAIS, R. C. S. de et al. Detection and quantification of Leishmania braziliensis in ectoparasites from dogs. Veterinary Parasitology, v. 196, n. 3–4, p. 506–508, 23 set. 2013.
1873-2550
10.1016/j.vetpar.2013.03.026
Autor
Morais, Rayana Carla Silva de
Gonçalves-de-Albuquerque, Suênia da Cunha
Pessoa e Silva, Rômulo
Costa, Pietra Lemos
Silva, Kamila Gaudêncio da
Silva, Fernando José da
Brandão-Filho, Sinval Pinto
Dantas-Torres, Filipe
Paiva-Cavalcanti, Milena de
Resumen
American cutaneous leishmaniasis (ACL) is a disease caused by different species of Leishmania protozoa, Leishmania braziliensis being the main species found in Brazil. In this study, two rural areas in Pernambuco, northeastern Brazil, where ACL is endemic, were selected. Genomic DNA was extracted from canine ectoparasites (ticks, fleas, and lice) and tested using a conventional PCR and a quantitative real time PCR. A total of 117 ectoparasites were collected, being 50 (42.74%) of them positive for L. braziliensis (in at least one PCR protocol), with a mean parasite load of 14.14 fg/μL. Furthermore, 46 (92.00%) positive ectoparasites were collected from positive dogs and 4 (8.00%) from negative ones. This study reports the detection of L. braziliensis DNA in ectoparasites, but does not prove their vector competence. Certainly, experimental transmission studies are necessary to assess their role, if any, in the transmission of Leishmania parasites to dogs.
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