As federal vaccine policy changes, this poll finds that most adults do not expect to get a COVID-19 vaccine this fall , and many parents are confused and uncertain about whether the vaccine is recommended for healthy children this year. About one in five adults nationally say the changes to vaccine policy are making people safer, while more than a third say they are making people less safe.

This volume highlights new research showing that certain prompting techniques can help reduce the risk of AI chatbots amplifying false medical information when users include fabricated terms in their queries. It also examines false claims linking vaccines to sudden infant death syndrome and the promotion of the industrial solvent dimethyl sulfoxide as an allegedly suppressed cancer cure despite a lack of clinical evidence.