Sand Flies (Diptera: Psychodidae) in an Endemic Area of Leishmaniasis in Aquidauana Municipality, Pantanal of Mato Grosso Do Sul , Brazil

Figueiredo, Helen Rezende de; Santos, Mirella Ferreira da Cunha; Casaril, Aline Etelvina; Infran, Jucelei Oliveira de Moura; Ribeiro, Letícia Moraes; Fernandes, Carlos Eurico dos Santos; Oliveira, Alessandra Gutierrez de

doi:10.1590/s1678-9946201658087

Cited by 10 publications

(11 citation statements)

References 94 publications

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“…Cases of CL have already been reported in this area (SINAN, 2019), thus demonstrating that autochthonous transmission is probably occurring, since the vector, reservoir (PESSOA-E-SILVA et al, 2019) and susceptible host share the same ecological niche. Findings of L. evandroi in the same ecotype as L. longipalpis (P8 and P10) have commonly been observed in previous studies (CHAGAS et al, 2016;FIGUEIREDO et al, 2016).…”

Section: Discussionsupporting

confidence: 82%

Sandflies in an endemic area for Visceral Leishmaniasis in Northeastern Brazil

Silva

Macedo

et al. 2019

Rev. Bras. Parasitol. Vet.

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Phlebotomines of the genus Lutzomyia are important vector for species of Leishmania, the etiological agent of leishmaniasis. The aim of this study was to assess the diversity of sandflies in an endemic area for Visceral Leishmaniasis (VL). Sampling was performed in four localities on the coast of the municipality of Goiana, state of Pernambuco, Northeastern Brazil. Specimens were collected monthly on three consecutive nights, from November 2017 to October 2018. CDC light traps were installed at a height of 1.5 m above the ground, in two ecotypes (i.e. tree and animal facility), both in peridomestic areas. A total of 5,205 sandflies were collected, among which the species Lutzomyia longipalpis (99.85%; 5,197/5,205) was the most common, followed by Lutzomyia evandroi (0.13%; 07/5,205) and Lutzomyia whitmani (0.02%; 01/5,205). Specimens of L. longipalpis were collected throughout the study period and most of them were found near to the animal facilities. The findings from this research indicate that vectors for Leishmania infantum are present in the study area throughout the year, along with occurrences of vectors relating to Cutaneous Leishmaniasis (CL). Preventive vector control measures need to be implemented in Goiana to reduce the risk of infection for the human and animal populations.

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Section: Discussionsupporting

confidence: 82%

Sandflies in an endemic area for Visceral Leishmaniasis in Northeastern Brazil

Silva

Macedo

et al. 2019

Rev. Bras. Parasitol. Vet.

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“…[47] and Figueiredo et al . [65] reported a sustained presence of this species in peridomestic environments, particularly those with domestic animals.…”

Section: Discussionmentioning

confidence: 99%

“…sordellii —all four species found exclusively in the rural area. Evandromyia aldafalcaoae , a species restricted to Mato Grosso do Sul, has been frequently collected from disturbed environments—peridomestically in the Pantanal sub-region of Nhecolândia [67] and in Corumbá county [47, 55], as well as indoors [65, 68]. Nyssomyia whitmani , a vector of etiological agents of cutaneous leishmaniasis in several Brazilian localities, has been frequently reported from Mato Grosso do Sul, especially where outbreaks of tegumentary leishmaniasis have occurred [61, 69, 70, 71].…”

Section: Discussionmentioning

confidence: 99%

Synanthropy and diversity of Phlebotominae in an area of intense transmission of visceral leishmaniasis in the South Pantanal floodplain, Midwest Brazil

et al. 2019

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Phlebotomines have been recorded from a wide variety of habitats, and some of these vector species have shown preference for human environments, with high levels of adaptation. This study evaluated the degree of preference of these vectors for urban, rural, and forested environments (synanthropic behavior), as well as the diversity of these species, in three areas (forested, rural, and urban, exhibiting different degrees of anthropogenic changes) in a region of intense transmission of visceral leishmaniasis in Corumbá county, Mato Grosso do Sul, Brazil. Using light traps, sand fly specimens were collected from the three environments simultaneously, from May 2015 to April 2017, totaling 7 213 sand flies of 14 species in eight genera. Nuorteva’s synanthropy index was determined for the species Lutzomyia cruzi , Brumptomyia brumpti , Micropygomyia peresi , Lu . forattinii , Martinsmyia oliveirai and Evandromyia corumbaensis . Lutzomyia cruzi , the vector of Leishmania infantum in Corumbá, was the most abundant vector species, recorded from all three areas and sampling plots, on all 24 months investigated. This species exhibited the highest synanthropic index (+75.09), indicating a strong preference for urban environments. Brumptomyia brumpti , Micropygomyia peresi , Lu . forattinii , and Martinsmyia oliveirai showed preference, albeit not strong, for urban environments. Overall, males were more abundant than females ( W = 490; p < 0.0001). High density, high synanthropic index, and sustained indoor presence were found for Mi . peresi in the rural area. Monitoring changes in the ecological behavior of sand flies is of vital importance, as these changes may indicate an increased likelihood of leishmaniasis emergence or reemergence.

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“…Consequently, depending on the scale, the attributes used for stratification, and the characteristics of the peridomestic habitats, captures between neighboring sites within a city can result in 1 to 1000 Lu. longipalpis, with a relative proportion of this species ranging from 0.18 to 100% (Ximenes et al 2000, Figueiredo et al 2016. Furthermore, the clustering of Lu.…”

Section: Landscape Stratification (Macroscale)mentioning

confidence: 99%

Lutzomyia longipalpis, Gone with the Wind and Other Variables

Salomón

2020

Neotrop Entomol

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Lutzomyia longipalpis (Lutz & Neiva) is the main vector of Leishmania infantum (Nicolle) in America, associated in turn with the current spread and urbanization of American visceral leishmaniasis (AVL). The vector distribution in AVL foci shows a spatial-temporal clustering despite the different epidemiological contexts. The factors associated with the macroscale distribution of Lu. longipalpis as a landscape stratification are discussed in the framework of the process of their adaptation to anthropized environments. On the other hand, the fact that Lu. longipalpis is clustered in only a few hot spots or critical sites suggests that microscale approaches that describe the trap surrounding environment and the availability of refuges and food sources are better at explaining the uneven distribution of this vector, and should contribute, together with macroscale variables, to design operational control strategies. With regard to temporal distribution and climatic or vegetation data obtained by remote sensing as variables to explain and forecast the abundance of Lu. longipalpis, it is necessary to take into account the time lags in relation to the life cycle of the vector, the difference between the level of daily activity and actual abundance, and the differences in critical variables and thresholds according to the region or season. In conclusion, this review shows that it is feasible to characterize the distribution of Lu. longipalpis at focus level and within it to identify the main critical sites, proposing a sequential cost-effectivity strategy for urban AVL surveillance and control.

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Sand Flies (Diptera: Psychodidae) in an Endemic Area of Leishmaniasis in Aquidauana Municipality, Pantanal of Mato Grosso Do Sul , Brazil

Cited by 10 publications

References 94 publications

Sandflies in an endemic area for Visceral Leishmaniasis in Northeastern Brazil

Sandflies in an endemic area for Visceral Leishmaniasis in Northeastern Brazil

Synanthropy and diversity of Phlebotominae in an area of intense transmission of visceral leishmaniasis in the South Pantanal floodplain, Midwest Brazil

Lutzomyia longipalpis, Gone with the Wind and Other Variables

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