What do I do when a full dose of vaccine is not given?
If the process of administering a vaccine is interrupted (such as by syringe-needle disconnection) and most of the dose (more than 50%) has not been given, repeat the whole dose at that visit.
If an infant spits out or vomits most of an oral rotavirus vaccine dose within minutes of administration, they can receive a single repeat dose during the same visit.
If an infant spits out or vomits only a small part of an oral rotavirus vaccine dose, there is no need to repeat the dose. The regurgitated (and incomplete volume) dose is still considered a valid dose.
Administration of vaccines - vaccine injection techniques - interruption to vaccination