Babies are very resistant, because they don't normally have much waste in them. "IF" your baby is vaccine free and your health was good, etc. then I would not worry! Your child will be subjected to many bad virus/bacteria and the nurses/doctors/hospital staff already gave him all the BAD ONES, so don't worry is my best advice!
YOUR WORRIES will mentally poison the baby and baby follow your mental fears, so BEWARE, have good thoughts and lots of LOVE for all yur family, or it can reflect in your baby and your mental thoughts can make or break your babies health. As weird as this sounds, they medicaly proved this over 150 years ago. Your baby is very much YOU! It will follow your MIND for the next couple of years as it learns to be independant from you.
YES, olive leaf syrup is excellent as is the Baby calm.