As eligibility for Covid-19 boosters widens in parts of the U.S., some people wonder when they should time their shots to maximize protection. 

Doctors say that in most cases, the best time to get a booster is as soon as you are eligible. Protection from a booster shot will bolster your immune defenses as the holidays approach and Covid-19 cases rise in parts of the country. Even if your antibody levels decline somewhat over time, your protection remains stronger after a booster. 

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