Yes i can tell you its safe and the Oral polio vaccine: This vaccine is made from live polio germs that are weakened. It is given as drops in the mouth that are swallowed. OPV goes through the digestive tract and out of the anus (rear end). This keeps the disease from being spread to other people. In very few cases, OPV can cause actual infection to the patient. OPV is no longer recommended in the United States but may be used in certain conditions. This type of vaccine is especially used in cases where a large number of people are infected, so he can visit the grandmother and why not he cant give it to no one and she wont give him any thing , so the nurse is right! this wouldnt affect any thing!

