revaccinate
For people at high risk, revaccination is recommended after five years.
Complications are rare, but at least ten times more common after primary vaccination than after revaccination.
The recalled doses are considered potent, so revaccinations won't be needed.

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