Refugees, humanitarian aid and the right to decline vaccinations.

Recent instances of governments and others refusing humanitarian assistance to refugees and IDPs (internally-displaced persons) unless they agreed to polio immunization for their children raise difficult ethical challenges. The authors argue that states have the right and a responsibility to require such vaccinations in instances where the serious vaccine-preventable disease(s) at issue threaten others, including local populations, humanitarian workers, and others in camps or support settings.