- Is it time for a second COVID booster shot? Not so fast, experts say San Francisco Chronicle
- Will adults need a fourth dose of COVID vaccine? The Seattle Times
- Expert: Little data to prove safety of 4th COVID-19 vaccine dose for now | TeleRadyo ABS-CBN News
- CDC says protection against Covid-19 lasts 4 months. Huntsville health leaders say it's longer WAAY
- CDC: Immunity from booster shots begins to wane after 4 months WTHR
- View Full Coverage on Google News
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