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2. Covid-19 vaccines: In the rush for regulatory approval, do we need more data?
3. Public Health England. Seasonal influenza vaccine uptake in healthcare workers in England: winter season 2019 to 2020. June 2020. www.gov.uk/government/statistics/seasonal-flu-vaccine-uptake-in-healthcare-workers-winter-2019-to-2020
4. Covid-19: Vaccination to become mandatory for care home staff and could extend to NHS
5. Covid-19: Is the UK heading towards mandatory vaccination of healthcare workers?