London Mayor Sadiq Khan wants the city to bid to host the 2040 Olympics as part of an ambitious plan to make London the world’s foremost s...

Dengue fever will become a major threat in the southern United States, southern Europe and new parts of Africa this decade, the WHO’s chie...

The death toll from Bangladesh’s worst dengue outbreak on record has topped 1,000 this year, official data showed, with hospitals strugglin...