From the Document: "As of March 18, 2020, the novel coronavirus that began sickening patients in Wuhan, China, in early December 2019 had spread across the globe. According to the World Health Organization (WHO), 15 countries, including the United States, have reported more than 1,000 infections. Europe is the current epicenter for cases and deaths related to the virus. WHO has named the new virus 'severe acute respiratory syndrome coronavirus 2' (SARS-CoV-2) and the disease that it causes 'coronavirus disease 2019' (COVID-19). WHO declared the outbreak a Public Health Emergency of International Concern on January 30, raised its global risk assessment to 'Very High' on February 28, and labeled the outbreak a 'pandemic' on March 11. In using the term pandemic, WHO Director-General Tedros Adhanom Ghebreyesus cited COVID-19's 'alarming levels of spread and severity' and governments' 'alarming levels of inaction.' President Donald J. Trump declared a national emergency in the United States on March 13."
CRS In Focus, IF11421
Congressional Research Service: https://crsreports.congress.gov/