Both public health agencies and vaccine companies have a stake in promulgating good information about vaccines: where the government sees gaps in immunization coverage, vaccine manufacturers see gaps in market coverage. Why shouldn't they work together to close them?
Rather than turning away children whose parents refuse to have them vaccinated, pediatricians should engage the parents in discussion about the importance and safety of vaccination.
Even if they are not sick, people in quarantine are still patients; the physician is responsible for their well-being and may find that it is necessary to advocate for them.