A comparative evaluation of endemic and non-endemic region of visceral leishmaniasis (Kala-azar) in India with ground survey and space technology

Kesari, Shreekant; Bhunia, Gouri Sankar; Kumar, Vijay; Jeyaram, A.; Ranjan, Alok; Das, Pradeep

doi:10.1590/s0074-02762011000500001

Cited by 16 publications

(8 citation statements)

References 26 publications

(23 reference statements)

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“…Several studies have been conducted about agricultural land use and emergence or re-emergence of vector-borne disease on national and international levels [22,23]. Our results showed a significant association between climatic factor and P. argentipes abundance, which had also been found in a previous study [15]. A significant association was established between sand fly density and soil pH of this study region.…”

Section: Discussionsupporting

confidence: 88%

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Spatial distribution of P. argentipes in association with agricultural surrounding environment in North Bihar, India

Kesari

Mandal

Bhunia

et al. 2014

J Infect Dev Ctries

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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.

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Section: Discussionsupporting

confidence: 88%

“…However, there is little information about the habitat of P. argentipes. Remote sensing (RS) and geographic information system (GIS) technologies can record and analyze the environmental variables of the earth's surface by its synoptic view and produce digitally processed maps to illustrate sand fly ecology [15].…”

Section: Introductionmentioning

confidence: 99%

Spatial distribution of P. argentipes in association with agricultural surrounding environment in North Bihar, India

Kesari

Mandal

Bhunia

et al. 2014

J Infect Dev Ctries

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“…On the other hand, air humidity had no effect on the ZVL or its vectors in some studies in Brazil (de Oliveira et al, 2016), Spain (Pérez-Cutillas et al, 2015) and also in our study in Iran. Humidity has been considered as an important factor for the growth and sandfly (Kesari et al, 2011) but recent studies may confirm the higher effect of soil humidity for providing breeding niches of sandfly larvae, especially in a semi-arid region such current study location that soil moisture comes from rivers and water channels.…”

Section: Discussionmentioning

confidence: 73%

Geo‐climatic factors in a newly emerging focus of zoonotic visceral leishmaniasis in rural areas of north‐eastern Iran

Ghatee

Fakhar

Derakhshani-Niya

et al. 2019

Transbound Emerg Dis

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Visceral leishmaniasis (VL) is the fatal form of leishmaniasis. A newly emerging focus of zoonotic VL (ZVL) including 13 villages has been reported from Maraveh Tappeh County, Golestan province, north‐eastern Iran. We investigated the effect of climatic and environmental factors on the occurrence of disease in this focus by geographical information systems (GIS) approaches and logistic regression models. The incidence rate of ZVL in human and dog population was estimated 1.2% and 27.3%, respectively, in the studied areas. Rock soil type (OR = 11.7), rainfall (OR = 1.04) and elevation (OR = 0.99) were found as determinants of ZVL. Also, almost all infected villages were in close proximity of rivers. Cavities of rock soil around rivers are assumed as suitable areas for sandfly resting and growth by providing shadow and moisture. Rainfall also provides appropriate moisture in semi‐arid regions for survival of sandflies. The negative effect of higher altitude can be explained by some sandfly life‐limiting conditions like freezing weather. Accordingly, regions with lower altitude and higher rainfall, covered by rock and in close proximity of rivers, are the hazard zones for ZVL in the Maraveh Tappeh. Air humidity, temperature, land cover type and slope were not predictors of disease in the current study. Further investigations on human population movement, probable reservoirs and vectors of disease can provide valuable data for modelling the future distribution of ZVL in the Iranian province.

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“…In their study, it was observed that satellite derived NDVI, land use and soil moisture, temperature, humidity data have very good correlation with man-hour density of sand �y. �esari et al [15] studied suitable habitats of the VL vector, P. argentipes density in relation to environmental characteristics between different ecosystems, performed an IRS P6 LISS IV satellite imagery, using factor analysis. ey observed that the density of P. argentipes has a positive load on minimum NDVI, marshy land, and orchard/settlement, whereas agricultural fallow and water body surface have a negative load on the �rst factor in an endemic site.…”

Section: �� and �I� �Or Identi��ation O�mentioning

confidence: 99%

“…It is widely accredited that the frequency as well as transmission dynamics of VL is closely interrelated to socioeconomic, climatic, and environmental factors, the latter including land use/land cover, topography, rainfall, temperature, and vegetation coverage [12][13][14][15][16]. e advent of geographic information systems (GISs) and remote sensing (RS) technologies opened new avenues to evaluate digital map data generated by earth observing satellite sensors for spatial and temporal environment analyses [17][18][19][20][21].…”

Section: Introductionmentioning

confidence: 99%

The Burden of Visceral Leishmaniasis in India: Challenges in Using Remote Sensing and GIS to Understand and Control

Bhunia

Kesari

Chatterjee

et al. 2013

ISRN Infectious Diseases

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Visceral leishmaniasis (VL) continues to constitute immense public health problems and be an obstacle to socioeconomic development in India. e scrutiny of this disease remains a necessary step in its control, eradication, and prevention. Space technologies proffer new opportunities for rapid appraisal of endemic areas, stipulation of trustworthy estimation of populations at risk, prediction of disease distributions in areas that lack baseline data and are difficult to access, and guiding intervention strategies. Here, we focus on the epidemiology and control of VL in India and review remote sensing (RS) and GIS applications to date. For the original evidenced report, a search was done on electronic databases of PubMed, ERMSS, EQUEST and from online Internet searching to come across the recent research problems. �e discuss the previous work conducted in this �eld, outlined potential new applications of GIS and RS techniques, and utilization of emerging satellite information, as they hold a promising area to further enhance VL risk mapping and prediction. Finally, we concluded with a discussion of strategies to overcome some of the perspective challenges of GIS and RS applications for VL control, so that supplementary and continued progress can be made to control this disease in India and elsewhere.

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A comparative evaluation of endemic and non-endemic region of visceral leishmaniasis (Kala-azar) in India with ground survey and space technology

Cited by 16 publications

References 26 publications

Spatial distribution of P. argentipes in association with agricultural surrounding environment in North Bihar, India

Spatial distribution of P. argentipes in association with agricultural surrounding environment in North Bihar, India

Geo‐climatic factors in a newly emerging focus of zoonotic visceral leishmaniasis in rural areas of north‐eastern Iran

The Burden of Visceral Leishmaniasis in India: Challenges in Using Remote Sensing and GIS to Understand and Control

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