“Look at her. She’s 5. She’s maybe 28 pounds. I can’t inject her with the dose they are requiring,” says Shulze-Alva, a chiropractor.

None of her children are fully vaccinated, says Shulze-Alve, who smiles pleasantly and patiently lays out her arguments. And now California has eliminated personal belief and religious exemptions for vaccination, meaning children may not enroll in school if they are unvaccinated unless they have a valid medical reason.