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 disease in Nigeria story of the treatment of Patrick Sawyer by Adadevoh and other medical staff, and the successful containment of the outbreak. Ebola virus disease in Nigeria Ebola virus disease in Nigeria occurred in 2014, a small part of the epidemic of Ebola virus disease (commonly known as "Ebola") beginning in Guinea that represented the first outbreak of the disease in a West African country. Previous outbreaks had been confined to countries in Central Africa. On 25 March 2014, the World Health Organization (WHO) reported that Guinea's Ministry of Health had reported an outbreak of Ebola virus disease in four southeastern districts,