Exactly how long does a COVID-19 vaccine last?

And the data available is promising.

Thats really encouraging news, says Dr. Moderna also hasdataalbeit from a much smaller samplethat suggests lasting efficacy of its vaccine.

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That is preliminary evidence for both Pfizer and Moderna efficacy lasting six months and probably longer, he says.

Instead, what youll experience is a slow decline over time.

And there is some evidence suggesting six months is likely, as Dr.

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professor of medicine and epidemiology at UCLA

Brewer has noted, to be a conservative estimate of efficacy.

Its Amazing How Its All Connected.

Protection is a function of two parts.

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So if theres no replication and transmission, theres no formation of new variants.

So when you hear that our current vaccines are less effective against these variants, Dr. …

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