How durable are the mRNA Covid vaccines?

How durable are the mRNA Covid vaccines? Does the protection last as long as other vaccines? Experts the vaccines are performing as expected.

In October, the Centers for Disease Control and Prevention recommended that high-risk adults get a second updated Covid vaccine to bolster their protection against the virus.

The agency now recommends that people ages 65 and up and those with weakened immune systems get a second dose of the 2024-25 vaccine six months after their first dose.

It’s not the first time the agency has advised or allowed for an additional dose for at-risk groups several months after the first. In the spring of 2022, officials authorized a second booster dose after the initial fall rollout. The same pattern followed in the spring of 2023 and the spring of 2024.

No other vaccines are given at such a high frequency, but experts say there’s no reason to believe that the vaccines — and in particular, the mRNA vaccines from Pfizer and Moderna — aren’t effective.

Pfizer’s and Moderna’s vaccines were the first to use mRNA technology to induce immunity to a virus, an approach that proved critical in the early days of the pandemic because mRNA vaccines can be developed much faster than traditional vaccines.

https://www.nbcnews.com/health/health-news/durable-are-mrna-covid-vaccines-rcna178457

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