Definition

Noun: 1. An additional dose of a vaccine: A booster shot is an extra administration of a vaccine given after the initial course (primary series) to strengthen, "boost," or renew the body's immune response, ensuring the protection from the first dose(s) remains effective over time.

Usage

The term is used specifically in medical and public health contexts to refer to supplementary vaccinations. - It is often scheduled months or years after the initial vaccination. - It is recommended when immunity from the primary vaccine series may wane.

Examples

Advanced Usage

• "Booster dose": A synonymous term often used interchangeably with "booster shot."
• "Booster campaign": Refers to an organized effort to administer booster shots to a population.
  • The health department launched a flu booster campaign for seniors.

Variants and Related Words

• Booster (n.): A common shortened, informal form of "booster shot."
  • I'm due for my tetanus booster.
• Booster dose (n.): A formal synonym.
• Revaccination (n.): The act of administering a vaccine again, which may include booster shots.

Synonyms

• Supplementary dose
• Recall dose
• Reinforcing dose

Related Phrases

• Get/receive a booster: The common collocation for obtaining the shot.
  • It's important to get your booster when recommended.
• Booster eligibility: Refers to the criteria (e.g., age, time since last dose) for receiving a booster shot.
  • Check the website for the latest booster eligibility guidelines.

Noun

1. an additional dose that makes sure the first dose was effective