Trust in vaccines — one of the world's most effective and widely-used medical products — is highest in poorer countries but weaker in wealthier ones where skepticism has allowed outbreaks of diseases such as measles to persist, a global study released Wednesday has found.
France has the least confidence of any country in the world in the safety and effectiveness of vaccines, with a third believing that vaccines are unsafe, according to the study.
While most parents do choose to vaccinate their children, varying levels of confidence expose vulnerabilities in some countries to potential disease outbreaks, the study's authors said, recommending that scientists need to ensure people have access to robust information from those they trust.