1. WHO Director‐General's opening remarks at the media briefing on COVID‐19 ‐ 11 March 2020. World Health Organization. Accessed April 23 2023.https://www.who.int/director‐general/speeches/detail/who‐director‐general‐s‐opening‐remarks‐at‐the‐media‐briefing‐on‐covid‐19‐‐‐11‐march‐2020
2. Mayor de Blasio Issues State of Emergency. Office of the Mayor City of New York. March 13 2020. Accessed April 23 2023.https://www1.nyc.gov/office‐of‐the‐mayor/news/138‐20/mayor‐de‐blasio‐issues‐state‐emergency
3. Executive Order No. 202. Declaring a disaster emergency in the State of New York. State of New York. March 7 2020. Accessed April 23 2023.https://www.governor.ny.gov/sites/default/files/atoms/files/EO_202.pdf
4. Geographic Differences in COVID-19 Cases, Deaths, and Incidence — United States, February 12–April 7, 2020
5. Coronavirus in N.Y.: Manhattan woman is first confirmed case in state;Goldstein J;New York Times