Parents who don't believe in vaccinating their children will no longer be able to take them to childcare or kindergarten in Victoria under proposed reforms.
The state government is introducing legislation that will require children to be fully vaccinated before such attendance is allowed.
The proposed law also closes a loophole that makes an exemption for parents who choose not to vaccinate their children on the grounds they are conscientious objectors.
Children who cannot be vaccinated for medical reasons will remain exempt.
"What we don't accept is those who go around myth-making about the risks of vaccination," Health Minister Jill Hennessy said on Sunday.