An entomological survey was carried out in 2007 in two Pyrenean counties of Lleida province (north-eastern Spain), where cases of autochthonous canine leishmaniasis have been recently reported. Phlebotomus ariasi and P. perniciosus, vectors of Leishmania infantum in the Mediterranean area, were captured. The aim of the present study was to compare these phlebotomine populations with others captured in known leishmaniasis foci in Europe. Populations of these species were studied by analysing the polymorphism of seven enzymatic systems (HK, PGI, PGM, MDH, 6PGD, FUM and ACO) and compared with other specimens from endemic regions of France, Italy, Malta, Portugal and Spain captured in other campaigns, and also with previously published results. Phlebotomus ariasi was more polymorphic than P. perniciosus. Only the ACO locus had diagnostic alleles, but some other alleles show high characteristic frequencies for each species. The neighbour-joining trees separated two population groups in both species. On the basis of the isoenzyme study results, sand fly populations of the Pyrenean region in Lleida province are closely related to those of other nearby leishmaniasis endemic regions in France and Spain.
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http://dx.doi.org/10.1051/parasite/2018005 | DOI Listing |
Parasite
August 2024
Université de Rennes, Inserm, EHESP, Irset (Institut de Recherche en Santé Environnement Travail), UMR_S 1085, 35000 Rennes, France.
Global changes in climate are contributing to modified Phlebotomine sand fly presence and activity, and the distribution of the pathogens they transmit (e.g., Leishmania and Phlebovirus), and are leading to their possible extension toward northern France.
View Article and Find Full Text PDFJ Vector Borne Dis
July 2024
Sustainability Solutions Research Lab, University of Pannonia, Veszprém, Hungary.
Background Objectives: The distribution of sandflies is influenced by several climatic factors, like winter temperature limits, summer humidity, and drought. Only a few studies were performed to search for the connection between the physiological tolerance of sandflies and the result of the Climate Envelope Models projected distribution borders.
Methods: It was studied how the depth of rodent burrows could determine the occurrence of five European Phlebotomus species based on their known physiological cold tolerances.
Trop Med Infect Dis
December 2023
National Reference Laboratory of Parasitic and Fungal Infections, National Institute of Health Doutor Ricardo Jorge, 1649-016 Lisboa, Portugal.
In the Old World, phlebotomine sand flies from the genus are implicated in the transmission of spp. parasites (Kinetoplastida: Trypanosomatidae) and viruses belonging to the genus (Bunyavirales: Phenuiviridae). Two of the five sand fly species known to occur in Portugal, and , the former being the most ubiquitous, are recognized vectors of , which causes visceral leishmaniasis, the most prevalent form of leishmaniasis in the country.
View Article and Find Full Text PDFZoonoses Public Health
September 2023
Department of Animal Health, Veterinary Faculty, Regional Campus of International Excellence 'Campus Mare Nostrum', University of Murcia, Murcia, Spain.
This study investigated the efficacy of high-volume spraying with the adulticide α-cypermethrin alone and in combination with the larvicide diflubenzuron on the density of sand flies in gardens of three detached households in periurban areas in southeast Spain. Treatments were applied four times between June and August 2016, and four nearby sites, two households and two non-urbanized sites, were untreated controls. The number of sand flies collected between May and October 2016 using sticky interception and light attraction traps, was 4446 specimens.
View Article and Find Full Text PDFScientificWorldJournal
May 2023
Ministry of Health and Social Protection, Higher Institute of Nursing Professions and Health Techniques, Fez, Morocco.
Sand flies are the exclusive vectors of leishmaniasis. This group of parasitic diseases is a serious public health problem in Morocco. The aim of this study was to investigate the sand fly fauna, mainly the species composition, biodiversity, and seasonal activity of sand flies in El Hajeb in central Morocco.
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