The term "vaccination protocol" refers to a set of guidelines or rules that dictate how vaccinations should be administered in order to achieve maximum effectiveness. This may include factors such as the appropriate age for receiving certain vaccines, the recommended dosage and frequency of administration, and any potential contraindications or precautions that must be taken before a person can receive a particular vaccine. The protocol is typically developed by medical professionals and public health organizations based on extensive research and clinical trials to ensure that vaccinations are as safe and effective as possible.