积极发现与管理病例：遏制COVID-19大流行的关键措施(14)

24. World Health Organization. The global health observatory.https://www.who.int/data/gho/data/indicators/indicator-details/GHO/hospital-beds-(per-10-000-population) (accessed May 26, 2020).
25. Thompson H, Imai N, Dighe A, et al. Report 7: estimating infection prevalence in Wuhan City from repatriation flights. March 9, 2020.https://spiral.imperial.ac.uk/handle/10044/1/77295 (accessed May 26, 2020).
26. Økland H, Mamelund SE. Race and 1918 influenza pandemic in the United States: a review of the literature. Int J Environ Res Public Health 2019; 16: 2487.
27. Johnson NP, Mueller J. Updating the accounts: global mortality of the 1918–1920 “Spanish” influenza pandemic. Bull Hist Med 2002;76: 105–15.
28. World Health Organization. COVID-19 strategy update. April 14, 2020. https://www.who.int/publications-detail/covid-19-strategy-update---14-april-2020 (accessed May 26, 2020).
29. European Centre for Disease Prevention and Control. Rapid risk assessment: coronavirus disease 2019 (COVID-19) pandemic—increased transmission in the EU/EEA and the UK, eighth update. April 8, 2020. https://www.ecdc.europa.eu/en/publications-data/rapid-risk-assessment-coronavirus-disease-2019-covid-19-pandemiceighth-update (accessed May 26, 2020).