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
Foreign animal disease and productivity. The VS has primary responsibility in a disease outbreak involving domestic livestock and/or poultry. The VS is divided into three operational units: The Surveillance, Preparedness and Response Services (SPRS) unit manages disease outbreaks (animal health incident management), surveillance programs, animal disease traceability programs, epidemiological investigations, commodity business planning, and One Health programs. The SPRS also manages the Logistics Center, which includes the National Veterinary Stockpile. Also part of the SPRS is the National Preparedness and Incident Coordination Center (NPIC), which has the responsibility for animal disease traceability, The National Animal Health Emergency Response Corps, the National Veterinary Accreditation