In The Politics of Autism, I analyze the myth that vaccines cause autism. This bogus idea can hurt people by allowing diseases to spread. Examples include measles, COVID, flu, and polio. A top antivaxxer is HHS Secretary RFK Jr. He is part of the "Disinformation Dozen." He helped cause a deadly 2019 measles outbreak in Samoa.
With childhood vaccination rates in the U.S. continuing to decline as measles cases rise across the U.S., KFF’s latest Tracking Poll on Health Information and Trust shows that several commonly circulated vaccine myths remain pervasive among the public. Many adults say they have heard false claims about the measles and COVID-19 vaccines, including that the measles, mumps, and rubella (MMR) vaccines have been proven to cause autism in children (66%), that more people have died from the COVID-19 vaccines than the virus (46%), that mRNA vaccines can alter DNA (36%), or that measles vaccines are more dangerous than measles itself (29%).
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When looking at patterns of belief across the four false vaccine claims, a new analysis shows that some adults are consistent or leaned myth believers (8% who say all four claims are either “probably” or “definitely true”), or myth deniers (55% who deny all four claims, saying they are either “probably” or “definitely false”). At the same time, about three in ten (31%) fall in a “mixed middle” group, providing a range of true and false answers across the four vaccine myths and lacking certainty on at least half of the false claims. This group may be an important focus for those looking to counter vaccine misinformation and dispel confusion. Black adults, Hispanic adults, Republicans, younger adults, and those without a college degree are all more likely than their counterparts to fall into this “mixed middle” group, as are individuals who go to social media or AI for health information. Notably, nearly half of parents who report skipping or delaying recommended vaccines for their children fall in the “mixed middle,” indicating that these parents’ decisions may be driven, at least in part, by uncertainty and confusion.
