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Title: Sand fly population dynamics and cutaneous leishmaniasis among soldiers in an Atlantic forest remnant in northeastern Brazil
Authors: Torres, Filipe Dantas
Sales, Kamila Gaudêncio da Silva
Miranda, Débora Elienai de Oliveira
da Silva, Fernando José
Figueredo, Luciana Aguiar
de Melo, Fábio Lopes
de Brito, Maria Edileuza Felinto
Andrade, Maria Sandra
Brandão Filho, Sinval Pinto
Affilliation: Fundação Oswaldo Cruz. Instituto Aggeu Magalhães. Recife, PE, Brasil
Abstract: Outbreaks of cutaneous leishmaniasis are relatively common among soldiers involved in nocturnal activities in tropical forests. We investigated the population dynamics of sand flies in a military training camp located in a remnant of Atlantic rainforest in northeastern Brazil, where outbreaks of cutaneous leishmaniasis have sporadically been described. From July 2012 to July 2014, light traps were monthly placed in 10 collection sites, being nine sites located near the forest edge and one near a sheep and goat stable. Light traps operated from 5:00 pm to 6:00 am, during four consecutive nights. Leishmania infection in sand flies was assessed using a fast real-time PCR assay. Cases of cutaneous leishmaniasis among soldiers were also investigated. In total, 24,606 sand flies belonging to 25 species were identified. Males (n = 12,683) predominated over females (n = 11,923). Sand flies were present during all months, being more numerous in March (n = 1,691) and April 2013 (n = 3,324). Lutzomyia choti (72.9%) was the most abundant species, followed by Lutzomyia longispina (13.8%), Lutzomyia complexa (5.3%), representing together >90% of the sand flies collected. Forty cases of cutaneous leishmaniasis were recorded among soldiers from January 2012 to December 2014. Leishmania isolates were obtained from eight patients and were all characterized as Leishmania braziliensis. Soldiers and anyone overnighting in Atlantic rainforest remnants should adopt preventative measures such as the use of repellents on bare skin or clothes and insecticide-treated tents.
Keywords: Leishmaniasis
Polymerase chain reaction
keywords: Leishmaniose
Reação em Cadeia da Polimerase
DeCS: Brasil
Leishmaniose cutânea
Reação em Cadeia da Polimerase
Issue Date: 2017
Citation: TORRES, F. D. et al. Sand fly population dynamics and cutaneous leishmaniasis among soldiers in an Atlantic forest remnant in northeastern Brazil. PLOS Neglected Tropical Diseases, v. 11, n. 2, p. e0005406, 27 fev. 2017.
DOI: 10.1371/journal.pntd.0005406
ISSN: 1935-2735
Copyright: open access
Appears in Collections:PE - IAM - Artigos de Periódicos

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