From the Document: "This leaflet provides basic exercises and advice for adults who have been severely unwell and admitted to the hospital with COVID-19 [coronavirus disease 2019]."
2020 World Health Organization. Posted here with permission. Document is under a Creative Commons license and requires proper attribution and noncommercial use to be shared: [https://creativecommons.org/licenses/by-nc-sa/3.0/igo/]
World Health Organization Regional Office for Europe: https://www.euro.who.int/