Booster shot: An additional dose of a vaccine needed periodically to "boost" the immune system. For example, a booster shot of the tetanus and diphtheria (Td) vaccine is recommended for adults every 10 years.
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Library > Literature & Language > Dictionary n. An additional dose of an immunizing agent, such as a vaccine or toxoid, given at a time after the initial dose to ...
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Eagles player Mike Patterson's seizure may be due to arteriovenous malformation, but the condition is often treatable. Philadelphia Eagles defensive tackle Mike Patterson ...
Some of the shots you took as a child weaken over time. Make sure to get your adult booster shots and keep you immunization on track.