Entomological survey of sand flies (Diptera: Psychodidae: Phlebotominae) in the city of Concórdia, western Santa Catarina, Brazil.
leishmaniasis; Leishmania spp.; vector; CDC traps; non-endemic region.
Visceral leishmaniasis remains one of the most neglected diseases in the world. The southern region of Brazil, despite having the lowest number of notifications, has been showing an expansion of the disease. Despite this, the sandfly fauna is still poorly known. Considering the scarcity of vector studies in the western region of the state of Santa Catarina, the present study carried out the entomological survey in the city of Concórdia, as well as the research of Leishmania spp. in captured sandflies. The collections were carried out using light traps of the CDC type, installed inside and outside the home in six research areas, during one year. The captured specimens underwent taxonomic identification and the females were subjected to the detection of Leishmania spp. through PCR. Furthermore, climatic data related to the research period were statistically correlated with the density of sandflies, as well as the sexual ration inside and outside the home. Thirty-eight sandflies belonging to six species were collected and there was no positive sample for Leishmania spp. The months of greatest capture were October and January, and the temperature showed a statistical correlation with the sand fly density. No positive sandflies were found, however, the presence of species with vectorial capacity represents a risk of a possible focus of leishmaniasis if there is an entry of allochthonous animals in the municipality.