https://www.wkms.org/tags/royal-free-london-nhs-foundation-trust Royal Free London NHS Foundation Trust en-US Copyright Tue, 20 Oct 2020 12:40:56 GMT https://www.wkms.org/health/2020-10-20/u-k-preparing-covid-19-vaccine-trials-that-deliberately-infect-study-subjects Proponents say that such controversial "human challenge" studies can speed up vaccine development. But others cite ethical concerns. Tue, 20 Oct 2020 12:40:56 GMT https://www.wkms.org/health/2020-10-20/u-k-preparing-covid-19-vaccine-trials-that-deliberately-infect-study-subjects Scott Neuman