I don't think any of the diseases that newborns are typically vaccinated for are more prevalent in the Dominican Republic. So I don't think your newborn being vaccine-free has anything to do with it.
Personally, I would just take the normal precautions of a thorough hand washing before holding the baby, and not visiting the baby if they feel sick at all.
And anyone with "just a cold," or the slightest cold symptoms, tell them, sorry, but come back and visit when you're well.
Mother to DD#1 s/b @40w 2003 for unknown reasons; DD#2 10.5 years old; DS 7 years old
A personal choice--your son's!
Eri mom to our two beautiful DDs (born 5/2012) and (7/2014). I also happen to be married to THE best DH ever! We're a proud Christian family!
" I carried you for nine months, and I'm going to carry you until you can carry yourself on your own."