Parents, of course, have a right not to get their children vaccinated, but when it's putting other people's children at risk you have to start asking questions.
Unimmunised children can increase the spread of measles by getting it themselves and passing it to others.
Earlier this year, public health experts blamed anti-vaccine campaigners and conspiracy theorists for the spread of measles, saying it could have been eradicated by now if it weren't for their myths.
Many of these myths centre on a discredited study by disgraced British doctor Andrew Wakefield which posited a link between the measles, mumps and rubella vaccine and autism. The fraud has since been referred to as the most damaging medical hoax of the past 100 years, and has been linked to epidemics and deaths.
Just yesterday a new study on childhood vaccines determined that immunisations do not lead to autism.
The report, published in the journal Pediatrics, also found serious reactions are rare among children.
Is this enough to change any minds? Let's hope so.
Who are the scaremongers still pushing their dangerous barrow, whose distrust of the public health system is such they'd put their children and others' at risk?