What if a mobile phone could prevent a health epidemic? It may sound like science fiction, but the World Health Organization's (WHO) Polio Geographic Information System (GIS) Technology is doing just that in 43 countries in Africa.
The idea is simple: Health workers visit remote villages to check if local inhabitants have any symptoms of a range of life-threatening infectious diseases, including polio and measles. Then, with the mobile app, they quickly and easily alert WHO.
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