E-Mail Around one in three working-age adults (29%) surveyed in France in July 2020 would refuse any COVID-19 vaccine. Willingness to receive a COVID-19 vaccination depended upon its country of origin, effectiveness, rate of serious side effects, and site of vaccination. Although attitudes may have changed since July 2020 with the approval of several vaccines and a second wave of COVID-19, the findings suggest that communicating the collective benefits of herd immunity reduced people's hesitancy about being vaccinated. Nearly one in three working-age adults in France (29%) surveyed in July 2020 - when lockdown restrictions had been eased - were outright opposed to being vaccinated against the virus, according to new research published in