Millions of people succumb to dengue virus infection each year. It's spread by the Aedes family of mosquitoes and causes a haemorrhagic fever, which can range in severity from mild to lethal. But predicting where the hotspots will be, so that appropriate healthcare provisions and anti-mosquito measures can be supplied to the right places is very difficult. Rachel Lowe, from the Catalan Institute of Climate Sciences in Barcelona, has been tackling the problem with a bit of help from FIFA, as she explained to Chris Smith...
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