1. Covid-19: WHO declares pandemic because of “alarming levels” of spread, severity, and inaction
2. Emergency medical services: COVID‐19 crisis;Maudet L;Rev Med Suisse,2020
3. novel coronavirus (2019‐nCoV): What advice can we give to travellers? ‐ Interim recommendations January 2020, from the Latin‐American Society for Travel Medicine (SLAMVI);Biscayart C;Travel Med Infect Dis,2019
4. Organisation World Health.Timeline of WHO's response to COVID‐19.2020.https://www.who.int/news‐room/detail/29‐06‐2020‐covidtimeline. Accessed October 5 2021.
5. Organisation World Health.WHO Coronavirus (COVID‐19) Dashboard.2021.https://covid19.who.int/. Accessed October 1 2021.