Comparison of small mammal prevalence of Leishmania (Leishmania) mexicana in five foci of cutaneous leishmaniasis in the State of Campeche, Mexico

Autor: N.A. Rivero-Cárdenas, N. R. van Wynsberghe, Erika Ivett Sosa-Bibiano, Fernando J. Andrade-Narvaez, Silvia B. Canto-Lara
Rok vydání: 2009
Předmět:
Zdroj: Revista do Instituto de Medicina Tropical de São Paulo. 51:87-94
ISSN: 0036-4665
DOI: 10.1590/s0036-46652009000200006
Popis: In the Yucatan Peninsula of Mexico, 95% of the human cases of Cutaneous Leishmaniasis are caused by Leishmania (Leishmania) mexicana with an incidence rate of 5.08 per 100,000 inhabitants. Transmission is limited to the winter months (November to March). One study on wild rodents has incriminated Ototylomys phyllotis and Peromyscus yucatanicus as primary reservoirs of L. (L.) mexicana in the focus of La Libertad, Campeche. In the present study, the prevalence of both infection and disease caused by L. (L.) mexicana in small terrestrial mammals were documented during five transmission seasons (1994-2004) in five foci of Leishmaniasis in the state of Campeche. Foci separated by only 100 km, with similar relative abundances of small mammals, were found to differ significantly in their prevalence of both symptoms and infection. Transmission rates and reservoir species seemed to change in space as well as in time which limited the implementation of effective control measures of the disease even in a small endemic area such as the south of the Yucatan Peninsula.
Databáze: OpenAIRE