booster injection
Follow-up vaccine dose
A booster injection is a supplementary dose of a vaccine given after the initial immunization to maintain or restore immunity.
Also called a booster shot or simply a booster: Have you gotten your tetanus booster?
The term extends to any follow-up dose that reinforces an earlier treatment's effects.
- adjuvantImmunity-boosting additive
- needlePointed implement for sewing
- armUpper body limb
- skinBody's outer layer
- vaccineDisease prevention injection
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