The phlebotomine fauna (Diptera: Psychodidae) of Guaraí, state of Tocantins, with an emphasis on the putative vectors of American cutaneous leishmaniasis in rural settlement and periurban areas

Vilela, Maurício Luiz; Pita-Pereira, Daniela de; Azevedo, Carina Graser; Godoy, Rodrigo Espíndola; Britto, Constança; Rangel, Elizabeth Ferreira

doi:10.1590/s0074-02762013000500007

Cited by 15 publications

(12 citation statements)

References 20 publications

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“…This species is prevalent in the Northern region of Brazil (37) (38) , as well as in the Northern region of MT (39) , where it was found naturally infected with Leishmania infantum (14) . The frequency of L. antunesi in the urban areas of Sinop highlights the importance of new studies focusing on this species in these areas.…”

Section: Gender (%)mentioning

confidence: 99%

Frequency and diversity of phlebotomine sand flies (Diptera: Psychodidae) in Sinop, State of Mato Grosso, Brazil

Thies

Bronzoni

Espinosa

et al. 2016

Rev. Soc. Bras. Med. Trop.

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Introduction: Understanding the diversity of sand flies is important for the epidemiology and control of leishmaniasis. This study aimed to understand the frequency, diversity, and seasonality of medically important sand flies in the municipality of Sinop, State of Mato Grosso, Brazil. Methods: The study was conducted in an urban area, including four ecotypes with different levels of urbanization. The sand flies were collected using light traps for three nights per month, from May 2014 to April 2015. Results: A total of 62,745 sand flies was collected, 52.34% of which were female. The frequency and diversity of sand flies was the highest in areas of permanent preservation (APPs) (96.85%), and was lower in more urbanized areas. Lutzomyia dasypodogeton was the most frequent species in the APPs. Lutzomyia antunesi was the most frequent in neighborhoods with forest fragments and neighborhoods around APPs, and L. aragaoi was the most frequent in completely urbanized neighborhoods. A higher frequency and diversity of sand flies was observed in the rainy season (87.92%) than in the dry season (12.08%). Eight medically important species were captured, and Lutzomyia antunesi, which is associated with American cutaneous leishmaniasis and visceral leishmaniasis, was observed in all ecotypes throughout the year. Conclusions: We observed a high frequency and diversity of sand flies in all urban areas, and some species collected were major vectors of leishmaniasis. These results support the need for further studies of the natural rates of infection of these insects and the circulation of the disease in hosts and vectors.

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Section: Gender (%)mentioning

confidence: 99%

Frequency and diversity of phlebotomine sand flies (Diptera: Psychodidae) in Sinop, State of Mato Grosso, Brazil

Thies

Bronzoni

Espinosa

et al. 2016

Rev. Soc. Bras. Med. Trop.

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“…The species of the Nyssomyia genus collected have already been reported in Acre, Brazil and neighboring countries [5, 10, 11, 27, 63, 70, 71]. Nyssomyia whitmani is considered a species complex that is widespread in Brazil and is of epidemiological importance as the main vector of Leishmania (V.) braziliensis in this country, and for having been incriminated in the transmission cycle of L. (V.) guyanensis and L. (V.) shawi in the Amazon region [16, 22, 41, 42, 55].…”

Section: Discussionmentioning

confidence: 99%

Attractiveness of black and white modified Shannon traps to phlebotomine sandflies (Diptera, Psychodidae) in the Brazilian Amazon Basin, an area of intense transmission of American cutaneous leishmaniasis

Brilhante

Ávila

Souza³

et al. 2017

Parasite

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In the Amazon region the phlebotomine fauna is considered one of the most diverse in the world. The use of Shannon traps may provide information on the anthropophily of the species and improve the traps’ performance in terms of diversity and quantity of insects collected when white and black colored traps are used together. This study sought to verify the attractiveness of the traps to the phlebotomine species of the Brazilian Amazon basin using Shannon traps under these conditions. The insects were collected using two Shannon traps installed side by side, one white and the other black, in a primary forest area of the municipality of Xapuri, Acre, Brazil. Samples were collected once a month during the period August 2013 to July 2015. A sample of females was dissected to test for natural infection by flagellates. A total of 6,309 (864 males and 5,445 females) specimens (36 species) were collected. Psychodopygus carrerai carrerai (42%), Nyssomyia shawi (36%), and Psychodopygus davisi (13%), together represented 90% of the insects collected. Nyssomyia shawi and Psychodopygus davisi were more attracted by the white color. Specimens of Nyssomyia shawi, Nyssomyia whitmani, and Psychodopygus hirsutus hirsutus were found naturally infected by flagellates in the mid and hindgut. This is the first study in Acre state using and comparing both black and white Shannon traps, demonstrating the richness, diversity, and anthropophilic behavior of the phlebotomine species and identifying proven and putative vectors of the etiological agents of leishmaniasis.

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“…Its presence in Tocantins is unlikely, then. The presence of L. (L.) longipalpis was assumed only in municipalities where the information was missing, so given the wide distribution of L. longipalpis in Brazil [12] and, more specifically, in Tocantins State [29][30][31][32][33][34][35][36][37], the chances of its capture in a new sand fly survey are high.…”

Section: Discussionmentioning

confidence: 99%

“…From the scarce bibliographic records that were found (9), the vector was recorded in only 22 municipalities of Tocantins [29][30][31][32][33][34][35][36][37]. In contrast, there are records of human cases in 124 municipalities, which demonstrate the lack of entomological studies in the state ( Figure 5).…”

Section: American Visceral Leishmaniasis and Lutzomyia (Lutzomyia) Lomentioning

confidence: 99%

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Ecoepidemiology of American Visceral Leishmaniasis in Tocantins State, Brazil: Factors Associated with the Occurrence and Spreading of the Vector Lutzomyia (Lutzomyia) longipalpis (Lutz & Neiva, 1912) (Diptera: Psychodidae: Phlebotominae)

Afonso¹,

MirandaChaves²,

Magalhães³

et al. 2017

The Epidemiology and Ecology of Leishmaniasis

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Leishmaniases are considered serious public health problems, and their geographical expansion has enabled their establishment in urban areas of medium and large cities in Brazil. Continuous processes of deforestation, construction of dams, and hydroelectric plants, among others, cause environmental impact and may favor the increase in the number of human cases of leishmaniases, as well as the establishment of epidemic outbreaks. This scenario reflects the reality of some regions of Brazil, such as Tocantins State, which in recent years has recorded high levels of American visceral leishmaniasis (AVL). This study is aimed to analyze environmental and epidemiological factors related with the spatial and temporal distribution of AVL and with the occurrence of Lutzomyia (Lutzomyia) longipalpis, the main vector of AVL, in the state of Tocantins. The results indicate that the vector is adapted to all environments, especially the ones under human influence, and that anthropogenic environmental impacts can support the development and adaptation of AVL in Brazil. Such information could be applied in control strategies aimed at decreasing AVL incidence.

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The phlebotomine fauna (Diptera: Psychodidae) of Guaraí, state of Tocantins, with an emphasis on the putative vectors of American cutaneous leishmaniasis in rural settlement and periurban areas

Cited by 15 publications

References 20 publications

Frequency and diversity of phlebotomine sand flies (Diptera: Psychodidae) in Sinop, State of Mato Grosso, Brazil

Frequency and diversity of phlebotomine sand flies (Diptera: Psychodidae) in Sinop, State of Mato Grosso, Brazil

Attractiveness of black and white modified Shannon traps to phlebotomine sandflies (Diptera, Psychodidae) in the Brazilian Amazon Basin, an area of intense transmission of American cutaneous leishmaniasis

Ecoepidemiology of American Visceral Leishmaniasis in Tocantins State, Brazil: Factors Associated with the Occurrence and Spreading of the Vector Lutzomyia (Lutzomyia) longipalpis (Lutz & Neiva, 1912) (Diptera: Psychodidae: Phlebotominae)

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