revaccination
There will be a need to revaccinate some high-risk children who have already received the jab.
People who were vaccinated with a vaccine of unknown type should be revaccinated with 2 doses of live vaccine.
Vaccinated animals that are suspected of being exposed to rabies should be re-vaccinated immediately and then strictly quarantined, generally for a period of 45 days.

SMART Vocabulary: related words and phrases

Immunology & vaccination
active immunity
ANA
anti-vax
antibody
antigen
antigenic
antinuclear antibody
electroporation
herd immunity
immune response
immunity
immunization
immunocompromised
immunosuppressed
lymph
unimmunized
uninoculated
unvaccinated
vaccinated
vaccination