Publications by authors named "Jorge A Palacio-Vargas"

Background: Localized cutaneous leishmaniasis (LCL) is a serious public health problem in Southern Mexico. Six species of Phlebotominae (Diptera: Psychodidae) have been found to be infected with Leishmania (Leishmania) mexicana, the causative agent of LCL in the region. However, little is known about the biology and potential participation of Psathyromyia cratifer in the Leishmania transmission cycle in Mexico, and the Americas.

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Article Synopsis
  • Lutzomyia longipalpis is a key insect that can spread Leishmania infantum, which causes visceral leishmaniasis in Latin America, particularly in Mexico where it has been found but not previously shown to carry the parasite.
  • In a study in southeastern Mexico, researchers collected 45 samples of this insect and tested them for Leishmania DNA, finding two that tested positive.
  • This discovery marks the first recorded infection of Lutzomyia longipalpis by Leishmania in Mexico, highlighting the need for further research to understand the species' role in spreading leishmaniasis in the region.
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Localized cutaneous leishmaniasis (LCL) is an endemic disease in several Mexican States with the main endemic areas located in the South-Southeast region of the country, where 90% of Leishmania (Leishmania) mexicana cases are registered. The Southeast region is located in the Yucatan Peninsula, including Campeche, Quintana Roo and Yucatan States. Campeche and Quintana Roo register more than 60% of the cases in the country each year, while in Yucatan the reports are of imported cases due to residents traveling to endemic areas.

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We evaluated the efficacy of bendiocarb (Ficam W 80%) and pirimiphos-methyl (Actellic 300CS 28.16%), applied to different surfaces potentially sprayable within houses during the application of a targeted indoor residual spraying (TIRS) against a field pyrethroid-resistant strain of . Bioassays with cones were performed on cement (walls), wood (doors), and textile (cloth) surfaces within typical houses in the Mexican city of Merida ( = 10).

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A survey was carried out in 51 households within a suburban area of Merida, Yucatan, Mexico, for 5 consecutive days. Adult collections were performed using Prokopack aspirators (indoors) and human-landing mosquito catches (HLC) outdoors, and larval sites (artificial containers) were revised for larvae collection. A total of 259 were collected, 246 from artificial larval sites, 8 by indoor aspiration, and 5 by HLC.

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