References:
  1. Statement on the eleventh meeting of the International Health Regulations (2005) Emergency Committee regarding the coronavirus disease (COVID-19) pandemic (who.int)
  2. WHO Unity Studies Unity Studies: Early Investigation Protocols (who.int)
  3. Public health surveillance for COVID-19: interim guidance. Geneva: World Health Organization; 2022 https://www.who.int/publications/i/item/WHO-2019-nCoV-SurveillanceGuidance-2022.2 accessed 21 January 2023.
  4. Strengthening the Global Architecture for Health Emergency Preparedness, Response and Resilience (who.int)
  5. World Health Organization strategy (‎2022-2026)‎ for the National Action Plan for Health Security (who.int)