evidence: "A completely unvaccinated child is unprotected against harmful and contagious diseases, such as measles, pertussis and chicken pox. Children who skip vaccines also pose a risk of transmitting diseases to other patients. This can be especially risky exposure for vulnerable populations, including infants too young to receive vaccines, elderly patients, patients with weakened immune systems or pregnant women." [...] Seventeen percent say a completely unvaccinated child shouldn't be allowed to use the waiting room, and 27% say unvaccinated children should wear masks in the waiting room to protect the most vulnerable patients. The remaining 28% of parents say the primary care office should allow unvaccinated children to continue getting care with no restrictions. [...] "Any parent – and particularly parents of infants or immunocompromised children – should ask their child's primary care provider about policies surrounding unvaccinated children."