revaccination
noun
plural revaccinations
Definition of revaccination
: the act of administering a vaccine again some period after an initial vaccination especially to strengthen or renew the immune response
The first vaccination is given after a cat is 16 weeks old. Thereafter, annual revaccination with a single dose is necessary for effective immunity. — Cat Fancy Revaccination produces protective antibody titers in only 18 to 25 percent of individuals who failed to respond to the initial immunization with hepatitis B vaccine. — Scientific American Medicine Bulletin
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