The coronavirus pandemic has spurred unprecedented efforts to find a vaccine. have been poured into development, with yearslong timelines . A vaccine is widely seen as one of the for ending the current crisis. There are no fewer than , 24 of which are already in clinical trials.But, at the same time, there have been growing concerns that many people will not take up a COVID-19 vaccine when it arrives. One recent poll showed that Americans would not try to get vaccinated; another showed that would actively refuse to do so. This means that countries could a level of uptake needed for herd...…The coronavirus pandemic has spurred unprecedented efforts to find a vaccine. have been poured into development, with yearslong timelines . A vaccine is widely seen as one of the for ending the current crisis. There are no fewer than , 24 of which are already in clinical trials.But, at the same time, there have been growing concerns that many people will not take up a COVID-19 vaccine when it arrives. One recent poll showed that Americans would not try to get vaccinated; another showed that would actively refuse to do so. This means that countries could a level of uptake needed for herd...WW…