Vaccine Bill Referendum Filed

California’s vaccine debate may not be over yet.

One day after Gov. Jerry Brown signed the end of the personal belief exemption into law, a leading opponent has filed a referendum on the measure with the Attorney General’s office.

That opponent is former Republican Assemblyman and gubernatorial candidate Tim Donnelly. He’ll have 90 days from Tuesday, the day the bill was signed into law, to collect more than 365,000 valid signatures from California voters.

The measure has drawn opposition from both ends of the political spectrum, particularly parents who question the vaccines despite strong scientific evidence that they’re safe.

But it passed by healthy margins in both chambers of the Legislature and was quickly signed into law by the governor.