How to fight back against coronavirus vaccine phobia

The world is soon likely to confront a serious new challenge to the fight against Covid-19: vaccine hesitancy. In the U.S. and U.K., large numbers of people — at least 30 percent — have said in recent surveys that they would hesitate to take or refuse a vaccine that could protect them from the coronavirus and slow its spread. These numbers probably understate the problem. People might tell a researcher that they will get vaccinated even if they won’t. And the problem might be even worse if a vaccine is made available under a speeded up “emergency use” exception to the usually lengthy approval process, amplifying public concerns about rushing it out. What can be done? To answer that question, we need to understand why some people are reluctant to take vaccines. Research explores the influence of three factors, often known as the three Cs. The first is convenience. Human beings suffer from inertia,...