1. Jaffe A, Alonso-Zaldivar R, Lemire J. Biden orders tough new vaccination rules for federal workers. AP News 2021 Jul 30. https://apnews.com/article/lifestyle-joe-biden-business-health-travel-a1670ffa08f1f2eab42c675d99f1d9ad
2. Getting the COVID-19 vaccine as a transplant patient
3. American Medical Association. AMA in support of COVID-19 vaccine mandates for health care workers. 26 Jul 2021. https://www.ama-assn.org/press-center/press-releases/ama-support-covid-19-vaccine-mandates-health-care-workers
4. Covid-19: Vaccination to become mandatory for care home staff and could extend to NHS
5. VA issues vaccine mandate for health care workers, a first for a federal agency. New York Times 2021 Jul 26. https://www.nytimes.com/2021/07/26/us/politics/veterans-affairs-coronavirus-covid-19.html