World’s first dengue fever vaccine cleared by Mexico

The world's first dengue vaccine won regulatory approval in Mexico on Wednesday, raising hopes that it could prevent more than 100 deaths there a year and eventually perhaps millions around the world. Globally, dengue is the fastest-growing mosquito-borne disease, with as many as 400 million people infected every year, according to the World Health Organization. The Dengvaxia vaccine is being manufactured by French pharmaceutical giant Sanofi.