scholarly journals Spatial heterogeneity and temporal evolution of malaria transmission risk in Dakar, Senegal, according to remotely sensed environmental data

2010 ◽  
Vol 9 (1) ◽  
Author(s):  
Vanessa Machault ◽  
Cécile Vignolles ◽  
Frédéric Pagès ◽  
Libasse Gadiaga ◽  
Abdoulaye Gaye ◽  
...  
Keyword(s):  
Spatial Heterogeneity ◽  
Malaria Transmission ◽  
Temporal Evolution ◽  
Remotely Sensed ◽  
Environmental Data ◽  
Transmission Risk

scholarly journals Spatial heterogeneity of malaria vectors and malaria transmission risk estimated using odour-baited mosquito traps

2014 ◽  
Vol 13 (S1) ◽  
Author(s):  
Alexandra Hiscox ◽  
Tobias Homan ◽  
Corné Vreugdenhil ◽  
Bruno Otieno ◽  
Anthony Kibet ◽  
...  
Keyword(s):  
Spatial Heterogeneity ◽  
Malaria Transmission ◽  
Transmission Risk ◽  
Malaria Vectors

scholarly journals Mapping Malaria Transmission Risk in Northern Morocco Using Entomological and Environmental Data

2011 ◽  
Vol 2011 ◽  
pp. 1-9 ◽  
Author(s):  
E. Adlaoui ◽  
C. Faraj ◽  
M. El Bouhmi ◽  
A. El Aboudi ◽  
S. Ouahabi ◽  
...  
Keyword(s):  
Plasmodium Vivax ◽  
Malaria Transmission ◽  
Satellite Imagery ◽  
Malaria Vector ◽  
Environmental Changes ◽  
Temporal Variations ◽  
Environmental Data ◽  
Transmission Risk ◽  
Cultivation Period ◽  
Very High

Malaria resurgence risk in Morocco depends, among other factors, on environmental changes as well as the introduction of parasite carriers. The aim of this paper is to analyze the receptivity of the Loukkos area, large wetlands in Northern Morocco, to quantify and to map malaria transmission risk in this region using biological and environmental data. This risk was assessed on entomological risk basis and was mapped using environmental markers derived from satellite imagery. Maps showing spatial and temporal variations of entomological risk for Plasmodium vivax and P. falciparum were produced. Results showed this risk to be highly seasonal and much higher in rice fields than in swamps. This risk is lower for Afrotropical P. falciparum strains because of the low infectivity of Anopheles labranchiae, principal malaria vector in Morocco. However, it is very high for P. vivax mainly during summer corresponding to the rice cultivation period. Although the entomological risk is high in Loukkos region, malaria resurgence risk remains very low, because of the low vulnerability of the area.

scholarly journals Impact of an accelerated melting of Greenland on malaria distribution over Africa

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Alizée Chemison ◽  
Gilles Ramstein ◽  
Adrian M. Tompkins ◽  
Dimitri Defrance ◽  
Guigone Camus ◽  
...  
Keyword(s):  
Climate Change ◽  
Malaria Transmission ◽  
Ice Sheet ◽  
Transmission Risk ◽  
Future Climate Change ◽  
Climate Change Scenarios ◽  
Climate Change Risk ◽  
System A ◽  
Climate Simulations ◽  
The Impact

AbstractStudies about the impact of future climate change on diseases have mostly focused on standard Representative Concentration Pathway climate change scenarios. These scenarios do not account for the non-linear dynamics of the climate system. A rapid ice-sheet melting could occur, impacting climate and consequently societies. Here, we investigate the additional impact of a rapid ice-sheet melting of Greenland on climate and malaria transmission in Africa using several malaria models driven by Institute Pierre Simon Laplace climate simulations. Results reveal that our melting scenario could moderate the simulated increase in malaria risk over East Africa, due to cooling and drying effects, cause a largest decrease in malaria transmission risk over West Africa and drive malaria emergence in southern Africa associated with a significant southward shift of the African rain-belt. We argue that the effect of such ice-sheet melting should be investigated further in future public health and agriculture climate change risk assessments.

Habitat discrimination of juvenile sardines in the Aegean Sea using remotely sensed environmental data

2008 ◽  
pp. 215-223 ◽  
Author(s):  
Konstantinos Tsagarakis ◽  
Athanassios Machias ◽  
Stylianos Somarakis ◽  
Marianna Giannoulaki ◽  
Andreas Palialexis ◽  
...  
Keyword(s):  
Aegean Sea ◽  
Remotely Sensed ◽  
Environmental Data ◽  
Habitat Discrimination

scholarly journals Microgeographic Epidemiology of Malaria Parasites in an Irrigated Area of Western Kenya by Deep Amplicon Sequencing

2020 ◽  
Author(s):  
Elizabeth Hemming-Schroeder ◽  
Daibin Zhong ◽  
Solomon Kibret ◽  
Amanda Chie ◽  
Ming-Chieh Lee ◽  
...  
Keyword(s):  
Malaria Transmission ◽  
Environmental Changes ◽  
Amplicon Sequencing ◽  
Transmission Intensity ◽  
Transmission Risk ◽  
Irrigated Agriculture ◽  
Irrigation Scheme ◽  
Malaria Parasites ◽  
Irrigated Area ◽  
The Impact

Abstract To improve food security, investments in irrigated agriculture are anticipated to increase throughout Africa. However, the extent to which environmental changes from water resource development will impact malaria epidemiology remains unclear. This study was designed to compare the sensitivity of molecular markers used in deep amplicon sequencing for evaluating malaria transmission intensities and to assess malaria transmission intensity at various proximities to an irrigation scheme. Compared to ama1, csp, and msp1 amplicons, cpmp required the smallest sample size to detect differences in infection complexity between transmission risk zones. Transmission intensity was highest within 5 km of the irrigation scheme by polymerase chain reaction positivity rate, infection complexity, and linkage disequilibrium. The irrigated area provided a source of parasite infections for the surrounding 2- to 10-km area. This study highlights the suitability of the cpmp amplicon as a measure for transmission intensities and the impact of irrigation on microgeographic epidemiology of malaria parasites.

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