Page last updated at 08:34 GMT, Friday, 4 September 2009 09:34 UK

Dengue fever spreading wider

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Dengue fever, a debilitating and sometimes fatal condition spread by mosquito bites, is spreading wider than ever, according to scientists.

Rapid overpopulation and increases in air travel are being blamed for the increase.

The disease infects 50 million people every year, with up to 2 and a half billion at risk worldwide.

Dominic Kane reports.

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