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
Mumps outbreaks in the 21st century cases of mumps, and the Centers for Disease Control and Prevention has reported that Arkansas leads the nation in mumps cases during the current outbreak. The high number of infections in Arkansas has prompted monitoring of the outbreak by the Louisiana Office of Public Health. Louisiana currently has no cases of mumps, but authorities are urging people in the state to take precautions due to outbreaks in the border states of Arkansas and Texas. There have been three confirmed cases of the mumps at Southern Illinois University-Carbondale, Two cases at Loyola University Chicago, and has spread to three other neighboring