PHOENIX — Brandy Williams is an East Valley mom who is not a fan of vaccinations - in fact she's 100 percent against them.
Williams says her son had a severe allergic reaction to a routine shot and says if she could rewind, she wouldn't have vaccinated her son.
"The conversation has to move away from disease bad- vaccines good," said Williams.
She is one of thousands in Arizona who are against vaccinations.
Arizona is one of 18 states where a parent can opt out of vaccinating their child. But health officials are worried the high number of exemptions in the state could put thousands of young people at risk if there was an outbreak of a disease prevented by vaccines, like the measles.
Right now, Fountain Hills and Queen Creek have the highest number of kindergartners exempt from vaccinations, followed by central and south Scottsdale, north Mesa, central and south Gilbert, Apache Junction, Cave Creek and Anthem, according to information from the Arizona Department of Health Services.
On the flip side, central Glendale, Maryvale, Estrella and the Gila River Indian Community have the highest rates of immunizations.
The CDC says getting those shots is the best line of defense.
For more information about immunizations at schools around Arizona, the state Department of Health Services has a database here.