Phlebotomine Sandfly (Diptera: Psychodidae) Fauna and The Association Between Climatic Variables and The Abundance of Lutzomyia longipalpis sensu lato in an Intense Transmission Area for Visceral Leishmaniasis in Central Western Brazil

Phlebotomine Sandfly (Diptera: Psychodidae) Fauna and The Association Between Climatic Variables and The Abundance of Lutzomyia longipalpis sensu lato in an Intense Transmission Area for Visceral Leishmaniasis in Central Western Brazil

The presence, abundance, and distribution of sandflies are strongly influenced by climate and environmental changes. This study aimed to describe the sandfly fauna in an intense transmission area for visceral leishmaniasis and to evaluate the association between the abundance of Lutzomyia longipalpi...

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Bibliographic Details
Published in:Journal of medical entomology Vol. 59; no. 3; pp. 997 - 1007
Main Authors: de Souza Fernandes, Wagner, de Oliveira Moura Infran, Jucelei, de Oliveira, Everton Falcão, Casaril, Aline Etelvina, Gomes Barrios, Suellem Petilim, Lopes de Oliveira, Samuel Lucas, de Oliveira, Alessandra Gutierrez
Format: Journal Article
Language:English
Published: US Entomological Society of America 11-05-2022
Oxford University Press
Subjects:
Abundance
Climate
Climate change
Correlation coefficient
Correlation coefficients
Cruz, Oswaldo
Diptera
endemic area
Environmental changes
Fauna
Humidity
Kala-azar
Light traps
Lutzomyia longipalpis
meteorological variable
Parasitic diseases
Psychodidae
Public domain
Relative humidity
Species
surveillance
Urban areas
vector ecology
Vector-borne diseases
VECTOR-BORNE DISEASES, SURVEILLANCE, PREVENTION
Vectors
Visceral leishmaniasis
Weather
Wind
Wind speed
Brazil
Argentina
meteorological variable
endemic area
vector ecology
surveillance
wind speed
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Summary:The presence, abundance, and distribution of sandflies are strongly influenced by climate and environmental changes. This study aimed to describe the sandfly fauna in an intense transmission area for visceral leishmaniasis and to evaluate the association between the abundance of Lutzomyia longipalpis sensu lato (Lutz & Neiva 1912) (Diptera: Psychodidae) and climatic variables. Captures were carried out 2 yr (July 2017 to June 2019) with automatic light traps in 16 sites of the urban area of Campo Grande, Mato Grosso do Sul state. The temperature (°C), relative humidity (%), precipitation (mm3), and wind speed (km/h) were obtained by a public domain database. TheWilcoxon test compared the absolute frequencies of the species by sex. The association between climatic variables and the absolute frequency of Lu. longipalpis s.l. was assessed using the Spearman's correlation coefficient. A total of 1,572 sandflies into four species were captured. Lutzomyia longipalpis s.l. was the most abundant species and presented a significant correlation with the average temperature, humidity, and wind speed in different periods. Lutzomyia longipalpis s.l. was captured in all months, showing its plasticity in diverse weather conditions.We emphasize the importance of regular monitoring of vectors and human and canine cases, providing data for surveillance and control actions to continue to be carried out in the municipality.
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ISSN:0022-2585
1938-2928
DOI:10.1093/jme/tjac006