Entomological findings in a focus of visceral leishmaniasis transmission in Embu das Artes Municipality: Contributions for prevention and surveillance

Abstract

ABSTRACT Background: Leishmaniasis occurs in Embu das Artes, where Lutzomyia longipalpis is absent, but secondary vectors are present. Methods: Sandflies were collected using Shannon and CDC (Center for Disease Control) light traps in a household with seropositive dogs; presence of flagellates was investigated by dissection. Results: From 11 species, 1,224 sand flies were collected, predominantly Pintomyia (Pi.) fischeri (88.6%) and Migonemyia (Mg.) migonei (8.4%). Shannon traps captured most specimens, mainly in peridomicile. Abundance was higher during spring/summer. Flagellates were detected only in Evandromyia (Ev.) edwardsi, with a 0.13% overall infection rate. Conclusion: Pi. fischeri predominance and kennel association of Mg. migonei reinforce their epidemiological importance for local leishmaniasis transmission.