Epidemics are rare events but when they occur, they can be devastating. Recent viruses such as Bird Flu, Swine Flu or SARS, not to mention the current Coronavirus epidemic, have claimed lives and led to panic across the world. How prepared are health officials for outbreaks in the future? And what is the latest viral research revealing about these mysterious organisms? An investigative documentary from 2014 by Anne Poiret and Raphaël Hitier.