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The CDC has updated its COVID-19 booster shot guidelines to clarify that only a single dose of the latest bivalent booster is recommended at this time.

“If you have completed your updated booster dose, you are currently up to date. There is not a recommendation to get another updated booster dose,” the CDC website now explains.

In January, the nation’s expert COVID panel recommended that the U.S. move toward an annual COVID booster shot in the fall, similar to the annual flu shot, that targets the most widely circulating strains of the virus. Recent studies have shown that booster strength wanes after a few months, spurring discussions of whether people at high risk of getting a severe case of COVID may need more than one annual shot.

September was the last time a new booster dose was recommended, when, at the time, the bivalent booster was released, offering new protection against Omicron variants of the virus. Health officials’ focus is now shifting from preventing infections to reducing the likelihood of severe ones, the San Francisco Chronicle reported.

Head over to WebMD to read the full story.