Final answer:
The principle involved in this situation is beneficence, which states that we should act in ways that benefit others or are for the good of others.
Step-by-step explanation:
The principle involved in this situation is beneficence. Beneficence is the principle that states we should act in ways that benefit others or are for the good of others. In the context of immunization, the temporary discomfort caused by the administration of the vaccine is outweighed by the benefits of protection from disease for both the individual and society.