Vaccine misinformation, which first began spiraling during the Covid-19 pandemic, has grown in the United States in the years since, according to a new survey from the Annenberg Public Policy Center of the University of Pennsylvania.

More than 1,500 adults responded to the survey between October 5 – 12 and according to the results, the share of people who viewed vaccines as less safe and effective has increased since April 2021, when the group was first included on a panel for the survey.

Americans are less likely to consider it safe to get the measles, mumps and rubella (MMR), pneumonia and Covid-19 vaccines than they were in April 2021.

While still a small group, people with views about the vaccines causing autism, cancer and illnesses such as the flu or Covid-19 also ticked up.