Yes. A baby can be born at any time. As to the chances of survival it would depend on how many weeks, and how well developed the baby's lungs and vital organs are. If you are asking for reasons of...
My Daughter is 4 months old and has/had it.Its normal. Take him/her to the doctor, they will give them medicine you put in their mouth with a cotton swab, just be sure to BOIL and serialize...