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Chapter 81 - The Nervous System

from Section 11 - Diseases of Body Systems

Published online by Cambridge University Press:  18 June 2025

David Mabey
Affiliation:
London School of Hygiene and Tropical Medicine
Martin W. Weber
Affiliation:
World Health Organization
Moffat Nyirenda
Affiliation:
London School of Hygiene and Tropical Medicine
Dorothy Yeboah-Manu
Affiliation:
Noguchi Memorial Institute for Medical Research, University of Ghana
Jackson Orem
Affiliation:
Uganda Cancer Institute, Kampala
Laura Benjamin
Affiliation:
University College London
Michael Marks
Affiliation:
London School of Hygiene and Tropical Medicine
Nicholas A. Feasey
Affiliation:
Liverpool School of Tropical Medicine
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Summary

The pattern of neurological disorders (ND) is largely similar worldwide, but there are some significant differences in Africa. Central nervous system (CNS) infections are common presentations, and stroke and epilepsy are increasingly prevalent. However, age-related diseases such as dementia and Parkinson’s are less common, and multiple sclerosis is rare. Some neurological diseases, Konzo, tropical ataxic neuropathy and nodding syndrome are found only in Africa. Some of these differences lie in Africa’s distinct geographic, climate, social, economic and ethnic makeup. NDs in Africa are also changing over time, decreasing the frequency of the more traditional CNS infections, including acute bacterial meningitis, tetanus, cerebral malaria and sleeping sickness. This decrease has been replaced by the huge burden of HIV infection, where an estimated 26 million people live with HIV. At the same time, there has been an increase in the burden of non-communicable NDs in Africa, including stroke and dementia. Western lifestyle, increasing urbanization and life expectancy, now almost 62 years, play an increasing role in these disorders.

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Publisher: Cambridge University Press
Print publication year: 2025

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