a collective effort to improve nutrition. Betimes, he became Member of the WHO Commission on Ending Childhood Obesity (2016), 2013–2014. Special envoy on Ebola (2014–2015) In August 2014, Nabarro was designated as special envoy of the UN Secretary-General on Ebola, with the responsibility for ensuring that the UN system makes an effective and coordinated contribution to the global effort to control the outbreak of Ebola. The epidemic is believed to have begun in December 2013 with the death of a 2-year-old boy in a remote area of Guinea, but was not recognized until March 2014. For several months the epidemic was spreading. This is something that public health experts in the affected locations, such as Medecins Sans Frontières (Doctors Without Borders), claimed was due to a deeply flawed and delayed response by health and government officials. In an interview later in 2015, once Ebola had largely been brought under control, Nabarro said that when he started working on Ebola in 2014, he "was aware that we were in the middle of a disease outbreak of enormous proportions. The number of people getting sick was doubling every week. Facilities were completely overloaded. Communities were in a state of despair." He added that the international community had learned important lessons from the epidemic: "The world is going to be different as a result of this Ebola outbreak, much more confident, much more assured, and much, much more capable to ensure the well-being of its citizens." Chair of the Advisory Group on Reform at WHO (2015–2016) Nabarro was responsible for leading a high-level advisory group to guide reform of WHO's response to outbreaks and emergencies, prepare reports based on the group's recommendations and advise on the manner of their implementation. Head of UN's response to cholera in Haiti (2016–2017) In 2016 Nabarro was tapped to lead the UN's response to Haiti's cholera epidemic. Cholera had killed more than 10,000 Haitians in the six years since the disease was introduced by UN peacekeepers in 2010. After UN Secretary General Ban Ki-Moon issued a long overdue apology for the UN's "role" in the epidemic, Nabarro oversaw efforts to raise $400 million from UN member states to fund the Secretary General's proposed "New Approach" to cholera in Haiti. Nabarro was the second UN appointee to work on the cholera crisis in Haiti. Pedro Modrano Rojas previously served as a senior coordinator for the cholera effort, but