used in In the Unlikely Event
only 1 use
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a substance (such as weakened or dead a disease-causing microorganism) injected into a person or animal to stimulate the production of antibodies to protect against a disease
- "Though polio cases have surged in recent years, we now see hope for a vaccine to prevent this dread disease," Mr. Stein said.
There are no more uses of "vaccine" in In the Unlikely Event.