It has been five years since 800,000 Rohingya crossed the border into Bangladesh from Myanmar to join those who had already fled recurrent cycles of violence waged against them by the Myanmar military. Today, more than a million people live in Bangladesh’s Cox’s Bazar refugee camps. How much have the living conditions of refugees changed since? And how can the international community step up to address what has become a protracted refugee crisis? Melisa Idris speaks to Dr Paul McPhun, Head of Projects for Médecins Sans Frontières (Doctors Without Borders) South-East, East Asia and the Pacific. He has recently returned from the largest refugee camp in Cox's Bazar, Bangladesh.