title: An iron-superoxide dismutase antigen-based serological screening of dogs indicates their potential role in the transmission of cutaneous leishmaniasis and trypanosomiasis in Yucatan, Mexico.
abstract: An increasing number of studies have reported high infection rates for American cutaneous leishmaniasis in dogs, which have thus been proposed as the reservoir host. Canine leishmaniasis is widespread in different states in Mexico, where a number of Leishmania species have been isolated from dogs. In the present study, the detection of different Leishmania species is described in stray dogs from two localities, namely Tulum and Celestún on the Yucatan Peninsula (Mexico). The use of iron-superoxide dismutase excreted by the parasites as the antigen fraction and enzyme-linked immunosorbent assay and western blot tests allowed us to confirm the presence of at least three species of Leishmania (Le. mexicana, Le. braziliensis, and Le. panamensis), some of which are reported for the first time in this species. In addition to a high prevalence of Le. mexicana and Le. braziliensis, and to a lesser degree, Le. panamensis, there is a significant prevalence of Trypanosoma cruzi, suggesting that the dog may be a source of transmission of trypanosomiasis. However, a more thorough epidemiological study on the dog population, both wild as well as urban, of the Yucatan Peninsula will be required to design a control strategy for these diseases, paying particular attention to the population affected and even broadening the study to other Mexican states as well as neighboring countries. These results again confirm that iron-superoxide dismutase excreted by the different trypanosomatid species constitutes a good source of antigen for serodiagnosis in epidemiological studies.
authors.affiliation: Departamento de Parasitología, Facultad de Ciencias, Universidad de Granada, Granada, Spain.
authors.forename: Silvia S
authors.initials: SS
authors.lastname: Longoni
authors.forename: Clotilde
authors.initials: C
authors.lastname: Marín
authors.forename: Carlos H
authors.initials: CH
authors.lastname: Sauri-Arceo
authors.forename: Angeles
authors.initials: A
authors.lastname: López-Cespedes
authors.forename: Roger I
authors.initials: RI
authors.lastname: Rodríguez-Vivas
authors.forename: Noelia
authors.initials: N
authors.lastname: Villegas
authors.forename: Javier
authors.initials: J
authors.lastname: Escobedo-Ortegón
authors.forename: Mario A
authors.initials: MA
authors.lastname: Barrera-Pérez
authors.forename: Manuel E
authors.initials: ME
authors.lastname: Bolio-Gonzalez
authors.forename: Manuel
authors.initials: M
authors.lastname: Sánchez-Moreno
mesh_terms: D000818:Animals; D000953:Antigens, Protozoan; D015153:Blotting, Western / Q000662:veterinary; D004199:Disease Vectors; D004283:Dog Diseases / Q000175:diagnosis* / Q000453:epidemiology / Q000469:parasitology* / Q000635:transmission; D004285:Dogs; D004797:Enzyme-Linked Immunosorbent Assay; D007891:Leishmania / Q000145:classification / Q000276:immunology* / Q000378:metabolism*; D016773:Leishmaniasis, Cutaneous / Q000175:diagnosis / Q000453:epidemiology / Q000635:transmission / Q000662:veterinary*; D008800:Mexico / Q000453:epidemiology; D013481:Superoxides; D014349:Trypanosoma cruzi / Q000302:isolation & purification; D014352:Trypanosomiasis / Q000453:epidemiology / Q000662:veterinary
chemical_list: D000953:Antigens, Protozoan; D013481:Superoxides