An outbreak of cholera in Yemen has killed 51 people in two weeks, the World Health Organization (WHO) said Thursday. WHO has identified 2,752 suspected cases of the acute diarrhoeal infection in Yemen since April 27 and is opening ten oral rehydration therapy centres in the capital of Sana'a to try to stop the spread. The upsurge follows a previous cholera outbreak in the country in October 2016. Around 7.6 million people live in Yemen live in areas at high risk of cholera transmission, according to WHO estimates.