A PHEIC (Public Health Emergency of International Concern) is defined by <a href="https://www.who.int/publications/m/item/annex-2-of-the-international-health-regulations-%282005%29" target="_blank">WHO</a> as "an extraordinary event which is determined to constitute a public health risk to other States through the international spread of disease and to potentially require a coordinated international response" under International Health Regulations, with recent examples including <a href="https://www.paho.org/en/news/30-1-2020-who-declares-public-health-emergency-novel-coronavirus" target="_blank">COVID-19</a>, Monkeypox, and wild polio (<a href="https://apps.who.int/iris/rest/bitstreams/1031116/retrieve" target="_blank">apps.who.int/iris/rest/bitstreams/1031116/retrieve</a>, linked <a href="https://www.who.int/health-topics/international-health-regulations#tab=tab_3" target="_blank">here</a> under publications).