California’s new law that eliminates personal belief exemptions has been a success, increasing vaccine uptake after just one year. That isn’t to say that there aren’t problems. One potential problem is the increasing number of medical exemptions, likely fueled by doctors willing to write letters of support for them based on reasons that are not science-based.
Much of the belief system that undergirds antivaccine views is rooted in superstition. That’s why it’s not a coincidence that antivaxers frequently speak in terms of contamination due to vaccines as a cause of autism and all the other conditions for which antivaxers blame vaccines and ritual purification in the form of “detoxification” as the treatment. These beliefs very much resemble religious beliefs, and antivaxers project them onto pro-science advocates.
Correcting antivaccine misinformation is hard. Real hard. Another study shows us just how hard.
On July 3, an antivaxer named Kent Heckenlively posted a WhiteHouse.gov petition demanding a five year moratorium on childhood vaccines. It failed. Did that stop Mr. Heckenlively? Of course not, and this time he has help from über-crank Mike Adams, who is whining about being “censored” by Facebook over it. The hilarity continues to ensue
Whenever vaccine uptake falls to a level below that needed to maintain herd immunity, the risk of outbreaks of vaccine-preventable diseases climbs. It doesn’t take that dramatic of a decline. Here’s a study that shows how a small decrease in vaccine uptake can lead to a large increase in disease.
