A study led by Adnan Custovic from the University of Manchester analyzing two surveys ten years apart (1993 and 2003) among 9-16 yr old schoolchildren attending urban and rural schools in Ghana showed that the prevalence of both exercise-induced bronchospasm and atopy had approximately doubled over the period.A related essay puts this survey into context through a discussion of the epidemiology of asthma in Africa. [click link for full article]
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