Open AccessEntomological surveys of Lutzomyia flaviscutellata and other vectors of cutaneous leishmaniasis in municipalities with records of Leishmania amazonensis within the Bragança region of Pará State, Brazil
Author(s) -
Carvalho Bruno M.,
dos Santos Thiago Vasconcelos,
da R. Barata Iorlando,
Lima José Aprígio N.,
Silveira Fernando T.,
Vale Mariana M.,
Ready Paul D.,
Rangel Elizabeth F.
Publication year - 2018
Publication title -
journal of vector ecology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.688
H-Index - 51
eISSN - 1948-7134
pISSN - 1081-1710
DOI - 10.1111/jvec.12296
Subject(s) - vector (molecular biology) , lutzomyia , leishmania , cutaneous leishmaniasis , psychodidae , biology , leishmaniasis , transect , veterinary medicine , transmission (telecommunications) , zoology , ecology , parasite hosting , immunology , medicine , biochemistry , engineering , gene , world wide web , computer science , electrical engineering , recombinant dna
In southeast Amazon, Lutzomyia (Nyssomyia) flaviscutellata is the incriminated vector of Leishmania (Leishmania) amazonensis , a causative agent of zoonotic cutaneous leishmaniasis (CL). The optimal methods for surveying Lu. flaviscutellata were investigated in the Bragança region, northeast Pará State, Brazil, selected for the presence of Le. amazonensis . The performances of modified Disney traps and CDC light traps were compared in four ecotopes within and around four village transects during the wet and dry seasons. The physiological age of female sand flies was estimated and natural infection by flagellates was evaluated by dissection. Disney traps were better for detecting the presence of Lu. flaviscutellata , while CDC traps performed well for detecting Lutzomyia (Nyssomyia) antunesi , suspected vector of Leishmania lindenbergi . The former was more abundant during the wet season, when female flies were naturally infected with Le. amazonensis . These findings identified the environments of local transmission. In order to improve surveys of Lu. flaviscutellata as part of integrated epidemiological surveillance of CL, our recommendations include focusing vector surveys with Disney traps on forest fragments where people work, during the seasonal peak of the vector. Further field studies are required to make model‐based predictions of seasonal variations in the vectorial capacity of vector populations.