Would you take an untested covid19 vaccine?

www.gavi.org/vaccineswork/how-covid-19-leading-innovation-clinical-trials

THE URGENCY OF COVID-19 REQUIRES INNOVATION
One approach to speed up testing of vaccines is through “adaptive trials”. These are trials that are constantly tweaked as they go. Usually in a vaccine trial, researchers will write a plan and stick to it through the entire course of the trial partly because of the expense involved in making changes. However, by making changes in response to new findings, things move much faster. Changes might involve expanding the trial to include new components looking at the safety and efficacy of additional vaccines, or to include new study sites and more study participants so that differences between the vaccine and control groups become apparent more quickly. These changes aren’t guesswork - they are based on clearly defined rules that have been set up by scientists who are experts at evaluating uncertainty.