A security guard and health worker prepare to carry a young boy weakened by cholera on a stretcher soon after he is delivered by a tuk-tuk (scooter) at the regional hospital in Baidoa town, the capital of Bay region of south-western Somalia where severe cases of malnourishment and cholera are reffered by a UNICEF- funded health programme for children and adults displaced by drought on March 15, 2017. The United Nations is warning of an unprecedented global crisis with famine already gripping parts of South Sudan and looming over Nigeria, Yemen and Somalia, threatening the lives of 20 million people. For Somalis, the memory of the 2011 famine which left a quarter of a million people dead is still fresh. / AFP PHOTO / TONY KARUMBA