Introduction: Phlebotomus argentipes is considered to be one of the major control measure targets in eradicating visceral leishmaniasis (VL). This study demonstrates the spatial association of P. argentipes abundance in relation to agricultural environment in the endemic area of north Bihar.
Methodology: Vector data were collected from the 95 villages of the study area using a handheld aspiration technique. Space technology and ground observationwere made to estimate the environmental characteristics.
Results: A total of 1,663 P. argentipes were collected between April and November 2011. Results showed negative and significant association between P. argentipes density and proximity to the agricultural land in both the dry (r = -0.39) and wet seasons (r = -0.55), respectively. A strong and positive association was observed between relative humidity and P. argentipes abundance (r = 0.55). Results illustrated a very strong positive association between soil moisture and P. argentipes abundance (r = 0.58). The agricultural land class density and the spatial abundance of P. argentipes showed a very strong and positive association (r = 0.46).
Conclusions: This study will help in understanding the advantage of agricultural land use practices to delineate of P. argentipes habitat suitability, which may strengthen existing control strategies in this endemic area.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.3855/jidc.3353 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Effect of indoor residual spraying on sandfly abundance and incidence of visceral leishmaniasis in India, 2016-22: an interrupted time-series analysis and modelling study.
Lancet Infect Dis
November 2024
Vector Biology Department, Liverpool School of Tropical Medicine, Liverpool, UK.
Background: Efforts to eliminate visceral leishmaniasis in India mainly consist of early detection and treatment of cases and indoor residual spraying with insecticides to kill the phlebotomine sandfly Phlebotomus argentipes that transmits the causative Leishmania protozoa. In this modelling study, we aimed to estimate the effect of indoor residual spraying (IRS) on vector abundance and transmission of visceral leishmaniasis in India.
Methods: In this time-series analysis and modelling study, we assessed the effect of IRS on vector abundance by using indoor vector-abundance data (from 2016 to 2022) and IRS quality-assurance data (from 2017-20) from 50 villages in eight endemic blocks in India where IRS was implemented programmatically.
Distribution of Annandale & Brunetti, 1908 in the Anuradhapura district, North Central Sri Lanka.
J Vector Borne Dis
January 2024
Department of Zoology and Environmental Management, Faculty of Science, University of Kelaniya, Kelaniya, Sri Lanka.
Background & Objectives: Phlebotomus argentipes Annandale & Brunetti, 1908 (Diptera: Psychodidae) is the main vector responsible for the transmission of Leishmania donovani (Laveran & Mesnil, 1903) Ross, 1903 in the subcontinent of India. It is the potential vector of cutaneous leishmaniasis in Sri Lanka. The present study determined ecological factors that influence the abundance of P.
View Article and Find Full Text PDFCutaneous and Visceral Leishmaniasis Caused by the Same Zymodeme of Leishmania donovani in Kerala, India.
Am J Trop Med Hyg
January 2024
Indian Council of Medical Research-Vector Control Research Centre, Puducherry, India.
The tribal population in and around the Western Ghats region of India is affected by both cutaneous leishmaniasis (CL) and visceral leishmaniasis (VL) with typical clinical symptoms. In this study, we recorded and analyzed seven CL and three VL cases from this emerging belt. All the cases were found as autochthonous transmission.
View Article and Find Full Text PDFThe ongoing risk of Leishmania donovani transmission in eastern Nepal: an entomological investigation during the elimination era.
Parasit Vectors
November 2023
Department of Biomedical Sciences and Outbreak Research Team, Institute of Tropical Medicine, Antwerp, Belgium.
Background: Visceral leishmaniasis (VL), a life-threatening neglected tropical disease, is targeted for elimination from Nepal by the year 2026. The national VL elimination program is still confronted with many challenges including the increasingly widespread distribution of the disease over the country, local resurgence and the questionable efficacy of the key vector control activities. In this study, we assessed the status and risk of Leishmania donovani transmission based on entomological indicators including seasonality, natural Leishmania infection rate and feeding behavior of vector sand flies, Phlebotomus argentipes, in three districts that had received disease control interventions in the past several years in the context of the disease elimination effort.
View Article and Find Full Text PDFImpact of climatic factors on temporal variability of sand fly abundance in Sri Lanka: Longitudinal study (2018 to 2020) with two-stage hierarchical analysis.
Res Sq
June 2023
Department of Parasitology, Faculty of Medicine, University of Colombo.
Background: Phlebotomine sand flies serve as vectors for leishmaniasis, a major health concern, but a neglected tropical disease. The risk of vector activity is governed by climatic factors that vary in different geographic zones in the country. Thus, we aimed to quantify the effect of climatic variables on sand fly vector activity in ten sentinel sites across Sri Lanka.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!