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Introduction
In the New World, several phlebotomize species (Diptera:
Psychodidae: Phlebotominae) are involved in the transmission of
parasites belonging to genus Leishmania. In an interesting way,
sandflies are adaptating to anthropic modifications. Some species
which were restricted to their natural environment are now found near
human dwellings, banana plantation and domestic animal shelters.
1
In Brazil, American Coetaneous Leishmaniasis (ACL) is widely
distributed, with several cases having been reported throughout the
country. ACL generally affect the skin and mucosal membranes
of several terrestrial mammals’ species. The spectrum of disease
includes diffuse cutaneous leishmaniasis, mucosal disease or single
ulcerative lesions, circular with well-defined raised borders and a
bed of granulation tissue.
2
The etiological agents consist of different
species of Leishmania, including L. (V.) braziliensis, L. (L.) mexicana,
L. (V.) panamensis responsible for because the disease in the definite
host through sandflies bites.
3,4
During the period from 2004 to
September 2013, the Vigilância Epidemiológica reported five cases
of ACL, being two from rural area and three from urban areas in the
municipality of Lavras. The patients’ ages range from 30 to 81 years
old. Due to the cases of ACL registered in Lavras, an entomological
survey of phlebotomize sand flies was carried out in the city, aiming at
detecting the presence of the vectors and to investigate the autochthony
of the registered ACL cases. Knowledge about local sandflies fauna
composition and behavior helps shed light on several aspects involved
in the transmission of leishmaniasis and has been the focus of several
investigations.
1,5,6
Material and methods
Lavras is a city in Southern Minas Gerais state, Brazil; located
at an altitude of 919m (Figure 1). It has a population density of
roughly 99,229 inhabitants and an area of the city is 564.7km²
(IBGE 2014). The climate of the areas is of the Cwa type according
to the Köppen classification, with an average annual temperature of
19°C and average annual rainfall of 1,530mm. In the soil sampling
period, the temperature variation ranged from 10.0 to 33.8°C with
an average temperature of 28°C and average precipitation of 14mm
(Meteorological Station of the Federal University of Lavras - UFLA).
The town native vegetation is represented by a mosaic of different
phytophysiognomies of forest and Cerrado, which have been partially
by substituted by pastures and agricultural crops, only small fragments
of native vegetation remaining, usually quite anthropized.
7
The captures were undertaken by the teams from the Vigilância
Ambiental and from the Laboratório de Biologia Parasitária of the
Universidade Federal de Lavras (BIOPAR/UFLA), in October 2013.
The entomological survey was performed during three consecutive
nights for 12h per night (6:00pm to 6:00am). Eight HP light traps
were installed being four in a small property equipped with a chicken
J Dairy Vet Anim Res. 2018;7(3):99‒101. 99
© 2018 Barcante et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which
permits unrestricted use, distribution, and build upon your work non-commercially.
First report of Nyssomyia whitmani (Antunes &
Coutinho, 1939) and Pintomyia fisheri (Pinto, 1926)
in a transmission area of American cutaneuous
Leishmaniasis, in south of Minas Gerais State, Brazil
Volume 7 Issue 3 - 2018
Thales Augusto Barcante,
1
Yuly Andrea
Caicedo Blanco,
2
Richardson Costa
Carvalho,
1
Daniel Isnard Moulin Gomes,
1
Leandro Mata da Rocha Melo,
1
Ingrid
Marciano Alvarenga,
2
Tarcisio Freitas
Milagres,
3
Joseane Camilla de Castro,
3
Thiago
Pasqua Narciso,
2
Joziana Muniz de Paiva
Barcante
1,4
1
Department of Health Sciences, Federal University of Lavras,
Brazil
2
Department of Veterinary Medicine, Federal University of
Lavras, Brazil
3
Department of Parasitology, Federal University of Minas Gerais,
Brazil
4
Coordination of Prevention of Endemias, Federal University of
Lavras, Brazil
Correspondence: Joziana Muniz de Paiva Barcante,
Department of Health Sciences, Post-graduation Program in
Health Sciences, Federal University of Lavras, CEP 37200-000,
Box Office 3037, Lavras, Minas Gerais, Brazil, Email joziana@
dsa.ufla.br
Received: February 21, 2018 | Published: June 04 2018
Abstract
The epidemiology of American Cutaneous Leishmaniasis (ACL) is driven by the presence
of vectors infecting humans with Leishmania spp parasites, in this way sand flies regarding
to Lutzomyia genera. The emergence and re-emergence of this disease around the world
calls for studies to identify geographical distribution of vectors and reservoir species
associated with zoonotic transmission of the parasite. Although cases of ACL have been
reported in Lavras, Minas Gerais State, Brazil, the epidemiological aspects of the disease
remain unknown. In this way, an entomological survey of phlebotomine sand flies was
carried out in the city, aiming at detecting the presence of potential vectors. HP traps light
were able to capture a sample of phlebotomines composed of Nyssomyia whitmani (Antunes
& Coutinho) in the peridomiciliary of both urban and rural area. In other hand, Pintomyia
fischeri (Pinto, 1926) and L. shannoni (Dyar, 1929) were collected just in the rural area of
the municipality. Despite the low densities found, this is the first report of N. whitmani, the
main vector of ACL and P. fischeri, a potential vector of ACL in the municipality of Lavras.
The present record not only contributes to our knowledge of the geographical distribution
of sand flies, but can also be used to understanding of the epidemiological aspects of the
Leishmania transmission that can be used to design better vector control strategies to
mitigate the incidence of ACL in endemic areas.
Keywords: leishmaniasis, sand fly, Minas Gerais, distribution
Journal of Dairy, Veterinary & Animal Research
Research Article
Open Access