If we have nieces and nephews who have not been vaccinated (religious preference), is it necessary to limit their exposure to our newborn baby?

I would stay away: Pertussis and measles are serious risks to newborns. If you are breastfeeding and you are immunized you are doing the ultimate best for your baby, and keeping him or her away from people who might have those diseases until your own baby is old enough to be immunized is the only way to limit exposure, especially if they're sick or exposed.

Absolutely!: Some vaccine preventable diseases, notably measles can have a prodrome in which the infected person is not yet ill but can transmit the disease to susceptible individuals. Thanks for trusting HealthTap!

1st yr is critical: In 2014 we lost about 40 kids to pertussis, most under 6 months of age when it is most severe. I would avoid any exposure to unimmunized kids for at least the first year if not forever.I never accepted them into my practice and didn't allow them in my waiting room.