Public Health Emergency of International Concern second PHEIC was issued in May 2014 with the resurgence of polio after its near-eradication, deemed "an extraordinary event." On Friday, August 8, 2014, the World Health Organization declared its third Public Health Emergency of International Concern in response to the outbreak of Ebola in Western Africa. On Monday, February 1, 2016, the World Health Organization declared its fourth PHEIC in response to clusters of microcephaly and Guillain–Barré syndrome in the Americas, which at the time were suspected to be associated with the ongoing outbreak of Zika virus. Later research and evidence bore out these concerns; in April, the WHO
Ebola virus epidemic in Guinea Ebola virus epidemic in Guinea An epidemic of Ebola virus disease in Guinea represents the first ever outbreak of Ebola in a West African country. Previous outbreaks have been confined to several countries in Sub-Saharan Africa. The epidemic, which began with the death of a two-year-old boy in 2013, is now part of a larger Ebola virus epidemic in West Africa which has spread through Guinea and the neighboring countries of Liberia and Sierra Leone, with minor outbreaks occurring in Senegal, Nigeria, and Mali. In 2015, Guinea was declared free of Ebola transmission by the U.N. World Health Organization. Researchers