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booster shot

NOUN

additional dose of vaccine

Synonyms

WEAK

booster booster dose booster injection immunization recall dose vaccine

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Accessing the Covid booster shot might seem a bit more confusing this year.

From The Wall Street Journal • Oct. 7, 2025

For those more likely to become seriously ill from Covid, the NHS offers a free booster shot.

From BBC • Sep. 16, 2024

Chin-Hong added that more than 95% of adults hospitalized with COVID-19 this past fall and winter had not received the latest booster shot, according to the CDC.

From Los Angeles Times • May 15, 2024

Ilka Warshawsky, a 58-year-old pathologist, said she lost all hearing in her right ear after a Covid booster shot.

From New York Times • May 3, 2024

We both want a booster shot for Blue Martian.

From Category Phoenix by Ellanby, Boyd