Jenny McCarthy, one of America’s most famous celebrity advocates against vaccinations, is now blaming them for ex-boyfriend Jim Carrey’s strange behavior, which, according to her, reached new levels of insanity when he appeared in a “Hee-Haw” video parodying dead actor Charlton Heston, to show his support for gun control. McCarthy says Carrey’s behavior went from amusingly eccentric to obnoxiously outdated ever since he received a rabies vaccination in 2010, as a precaution against penguin bites while preparing to film the family comedy “Mr. Popper’s Penguins.”

“I first knew something was wrong when Jim gave up on his lifelong battle to be taken seriously as a dramatic actor,” McCarthy told Hollywood & Swine. “Things got even worse, when like most of America, Jim couldn’t remember what I was famous for.”

McCarthy, who has been a controversial figure in the medical community for linking vaccines with causing autism, ended her five year relationship with Carrey in 2010, unable to handle his increasingly erratic behavior do to his rabies vaccination. Carrey then made headlines in 2011, when he made a creepy video confessing his love for actress Emma Stone. Carrey’s unpredictable behavior became hard to ignore in recent months when he publically battled for stricter gun control laws in between filming his ultra-violent vigilante film, “Kick-Ass 2.”

Medical experts now fear that McCarthy’s unproven allegations blaming Jim Carrey’s current behavior and lack of boxoffice success on vaccinations will scare off other movie stars from getting vaccinations that are vital to their health.

“She’s already scared Gerard Butler from getting his hepatitis vaccination,” a spokesperson for the Center for Disease Control said. “I’ve seen some of the women Gerard Butler goes home with and it is important he gets that shot.”