Review Articles

The impact of solar ultraviolet radiation on human health in sub-Saharan Africa

Caradee Y. Wright, Mary Norval, Beverley Summers, Lester Davids, Gerrie Coetzee, Matthew O. Oriowo
South African Journal of Science | Vol 108, No 11/12 | a1245 | DOI: https://doi.org/10.4102/sajs.v108i11/12.1245 | © 2012 Caradee Y. Wright, Mary Norval, Beverley Summers, Lester Davids, Gerrie Coetzee, Matthew O. Oriowo | This work is licensed under CC Attribution 4.0
Submitted: 24 April 2012 | Published: 26 October 2012

About the author(s)

Caradee Y. Wright, Modelling and Environmental Health Research Group, Council for Scientific and Industrial Research, Natural Resources and the Environment, Pretoria, South Africa
Mary Norval, Biomedical Sciences, University of Edinburgh Medical School, Edinburgh, United Kingdom
Beverley Summers, Department of Pharmacy / Photobiology Laboratory, University of Limpopo, Polokwane, South Africa
Lester Davids, Department of Human Biology, University of Cape Town Medical School, Cape Town, South Africa
Gerrie Coetzee, South African Weather Services, Pretoria, South Africa
Matthew O. Oriowo, Department of Optometry, Faculty of Health Sciences, University of Limpopo, Polokwane, South Africa

Abstract

Photoprotection messages and ‘SunSmart’ programmes exist mainly to prevent skin cancers and, more recently, to encourage adequate personal sun exposure to elicit a vitamin D response for healthy bone and immune systems. Several developed countries maintain intensive research networks and monitor solar UV radiation to support awareness campaigns and intervention development. The situation is different in sub-Saharan Africa. Adequate empirical evidence of the impact of solar UV radiation on human health, even for melanomas and cataracts, is lacking, and is overshadowed by other factors such as communicable diseases, especially HIV, AIDS and tuberculosis. In addition, the established photoprotection messages used in developed countries have been adopted and implemented in a limited number of sub-Saharan countries but with minimal understanding of local conditions and behaviours. In this review, we consider the current evidence for sun-related effects on human health in sub-Saharan Africa, summarise published research and identify key issues. Data on the prevalence of human diseases affected by solar UV radiation in all subpopulations are not generally available, financial support is insufficient and the infrastructure to address these and other related topics is inadequate. Despite these limitations, considerable progress may be made regarding the management of solar UV radiation related health outcomes in sub-Saharan Africa, provided researchers collaborate and resources are allocated appropriately.

Keywords

solar UV radiation; human health; skin cancer; sub-Saharan Africa; sun protection

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Crossref Citations

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