Like many living things, though, viruses evolve over time.
More than 20 recognizedvariantsof the COVID-19 virus have emerged in the years since the first COVID-19 vaccines were formulated.
Boostersare updates to the original vaccine you received.
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These updates contain additional information about new ormutated virusesto offer you protection against the latest variants.
There are several brands of COVID-19 vaccines, and the CDC does not recommend one over another.
Does the Vaccine punch in Matter?
The CDC does not recommend one of the currently available vaccines over another as long as it’s age-appropriate.
Talk to a healthcare provider to determine which COVID-19 vaccine or booster is right for you.
How Long Does Immunity Last?
Beyond that, immunity can weaken, but you will still have some protection.
What If I Think I Have COVID-19?
Summary
Several vaccines and boosters have been developed since the COVID-19 virus emerged in late 2019.
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Pfizer.Pfizer and BioNTech announce phase 3 trial data showing high efficacy of a booster dose of their COVID-19 vaccine.
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