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
Bulletin of the World Health Organization Bulletin of the World Health Organization The Bulletin of the World Health Organization is a monthly public health journal published by the World Health Organization that was established in 1947. It aims to give public health policy and practice guidance based on the best evidence available, while encouraging closer links between scientific investigation and the art of helping populations to lead healthier lives. Articles are published in English and abstracts are available in Arabic, Chinese, English, French, Russian, and Spanish. It is open access journal and uses the Creative Commons 3.0 IGO license. The Bulletin is abstracted and indexed in