Projected Impacts of Climate Change on Environmental Suitability for Malaria Transmission in West Africa

Yamana, Teresa K.; Eltahir, Elfatih A. B.

doi:10.1289/ehp.1206174

Cited by 48 publications

(42 citation statements)

References 38 publications

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“…For example, changes in temperature have serious adverse effects on the pattern and incidence of infectious diseases [22]. Global warming favors the survival and transmission of causative pathogens or vectors of the causative agent [23][24][25][26][27]. Climate change influences the dynamics of vector-borne, water-borne, foodborne, rodent-borne, and air-borne infectious diseases [28,29].…”

Section: Introductionmentioning

confidence: 99%

Bibliometric analysis of peer-reviewed literature on climate change and human health with an emphasis on infectious diseases

Sweileh

2020

Global Health

120

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Background: Assessing research activity is important for planning future protective and adaptive policies. The objective of the current study was to assess research activity on climate change and health with an emphasis on infectious diseases.Method: A bibliometric method was applied using SciVerse Scopus. Documents on climate change and human health were called "health-related literature" while documents on climate change and infectious diseases were called "infection-related literature". The study period was from 1980 to 2019. Results: The search query found 4247 documents in the health-related literature and 1207 in the infection-related literature. The growth of publications showed a steep increase after 2007. There were four research themes in the health-related literature: (1) climate change and infectious diseases; (2) climate change, public health and food security; (3) heat waves, mortality, and non-communicable diseases; and (4) climate change, air pollution, allergy, and respiratory health. The most frequently encountered pathogens/infectious diseases in the infection-related literature were malaria and dengue. Documents in infection-related literature had a higher h-index than documents in the health-related literature. The top-cited documents in the health-related literature focused on food security, public health, and infectious diseases while those in infection-related literature focused on water-, vector-, and mosquito-borne diseases. The European region had the highest contribution in health-related literature (n = 1626; 38.3%) and infection-related literature (n = 497; 41.2%). The USA led with 1235 (29.1%) documents in health-related literature and 365 (30.2%) documents in infection-related literature. The Australian National University ranked first in the health-related literature while the London School of Hygiene & Tropical Medicine ranked first in the infectionrelated literature. International research collaboration was inadequate. Documents published in the Environmental Health Perspectives journal received the highest citations per document. A total of 1416 (33.3%) documents in the health-related literature were funded while 419 (34.7%) documents in the infection-related literature were funded. (Continued on next page)Conclusion: Research on climate change and human health is on the rise with research on infection-related issues making a good share. International research collaboration should be funded and supported. Future research needs to focus on the impact of climate change on psychosocial, mental, innovations, policies, and preparedness of health systems.

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Section: Introductionmentioning

confidence: 99%

Bibliometric analysis of peer-reviewed literature on climate change and human health with an emphasis on infectious diseases

Sweileh

2020

Global Health

120

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“…Residual transmission is exacerbated by human movements through exportation and importation of malaria parasites among regions 13 . It is also caused by climate change which enhances mosquito breeding and pathogen development 14,15 and more importantly, the proximity of natural or artificial mosquito breeding sites to human settlements 16 .…”

Section: Introductionmentioning

confidence: 99%

Potential of household environmental resources and practices in eliminating residual malaria transmission: a case study of Tanzania, Burundi, Malawi and Liberia

Semakula¹,

Song²,

Zhang³

et al. 2015

Afr H. Sci.

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Background: The increasing protection gaps of insecticide-treated nets and indoor-residual spraying methods against malaria have led to an emergence of residual transmission in sub-Saharan Africa and thus, supplementary strategies to control mosquitoes are urgently required. Objective: To assess household environmental resources and practices that increase or reduce malaria risk among children under-five years of age in order to identify those aspects that can be adopted to control residual transmission. Methods: Household environmental resources, practices and malaria test results were extracted from Malaria Indicators Survey datasets for Tanzania, Burundi, Malawi and Liberia with 16,747 children from 11,469 households utilised in the analysis. Logistic regressions were performed to quantify the contribution of each factor to malaria occurrence. Results: Cattle rearing reduced malaria risk between 26%-49% while rearing goats increased the risk between 26%-32%. All piped-water systems reduced malaria risk between 30%-87% (Tanzania), 48%-95% (Burundi), 67%-77% (Malawi) and 58%-73 (Liberia). Flush toilets reduced malaria risk between 47%-96%. Protected-wells increased malaria risk between 19%-44%. Interestingly, boreholes increased malaria risk between 19%-75%. Charcoal use reduced malaria risk between 11%-49%. Conclusion: Vector control options for tackling mosquitoes were revealed based on their risk levels. These included cattle rearing, installation of piped-water systems and flush toilets as well as use of smokeless fuels.

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“…1d) according to Nicholson (2001) and Yamana and Eltahir (2013) based on the broad vegetation gradient (from forest in the southern part to the Sahelian savannah in the northern part) and the mean zonal distribution of rainfall from south to north over the region, with the aim of giving an overview of potential links between climate and variability in burned areas in these subregions. The subclimatic regions or subregions were defined as follows: subregion 1 (5-8 • N), subregion 2 (8-11…”

mentioning

confidence: 99%

Effects of climate variability on savannah fire regimes in West Africa

N’Datchoh¹,

Konaré²,

Diedhiou

et al. 2015

Earth Syst. Dynam.

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Abstract. The main objective of this work is to investigate at regional scale the variability in burned areas over the savannahs of West Africa and their links with the rainfall and the large-scale climatic indexes such as the Southern Oscillation Index (SOI), Multivariate ENSO Index (MEI), North Atlantic Oscillation (NAO) and sea surface temperature gradient (SSTG). Daily satellite products (L3JRC) of burned areas from the SPOT Vegetation sensor at a moderate spatial resolution of 1 km × 1 km between 2000 and 2007 were analyzed over the West African savannah in this paper. Results from seasonal analysis revealed a large increase in burned areas from November to February, with consistent peaks in December at the regional scale. In addition, about 30 % of the pixels are burned at least four times within the 7-year period. Positive correlations were found between burned areas and rainfall values obtained from the TRMM satellite over savannahs located above 8 • N, meaning that a wet rainfall season over these regions was favorable to biomass availability in the next dry season and therefore may induce an increase in burned areas in this region. Moreover, our results showed a nonlinear relationship between the large-scale climatic indexes SOI, MEI, NAO and SSTG and burned-area anomalies. Positive (negative) correlations between burned areas and SOI (MEI) were consistent over the Sahel and Sudano-Sahelian areas. Negative correlations with Atlantic SSTG were significant over the Guinea subregion. Correlations between burned areas over Sudano-Guinean subregion and all the large-scale indexes were weak and may be explained by the fact that this subregion had a mean rainfall greater than 800 mm yr −1 with permanent biomass availability and an optimal amount of soil moisture favorable to fire practice irrespective of the climate conditions. The teleconnection with NAO was not clear and needed to be investigated further.

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Projected Impacts of Climate Change on Environmental Suitability for Malaria Transmission in West Africa

Cited by 48 publications

References 38 publications

Bibliometric analysis of peer-reviewed literature on climate change and human health with an emphasis on infectious diseases

Bibliometric analysis of peer-reviewed literature on climate change and human health with an emphasis on infectious diseases

Potential of household environmental resources and practices in eliminating residual malaria transmission: a case study of Tanzania, Burundi, Malawi and Liberia

Effects of climate variability on savannah fire regimes in West Africa

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