Bivalent COVID-19 Booster

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Bivalent COVID-19 Booster

The new formulation is designed to protect against the coronavirus circulating now, but will it feel different.

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Andrew Pekosz, a virologist at the Johns Hopkins Bloomberg School of Public Health, said the bivalent booster's side effects were similar to the regular booster and initial vaccination.

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Redness at the injection site, soreness, and fatigue are common side effects of the bivalent booster.

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According to the CDC, other common COVID-19 vaccine side effects in adults include headaches, fever, chills, and nausea. In children, side effects vary.

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Young children, ages 6 months to 3 years, may also experience swollen lymph nodes, irritability, sleepiness, or appetite loss.

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Two bivalent COVID-19 boosters are FDA-approved. Moderna is for adults, while Pfizer is for those 12 and older.

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It's hard to say how much better these boosters will protect us from the virus than the last version because human tests just started.

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