- Already vaccinated against Covid-19? Experts say you’re protected, even without a booster shotCNN
- Booster shots hitch: Some may miss the Sept. 20 startYahoo News
- Health Officials Advise Biden to Scale Back Covid-19 Booster Shots Plan For NowThe New York Times
- One Vaccine Makes More Antibodies Than Another. Does it Matter?Bloomberg
- Moderna says lower booster dose could free up a billion dosesYahoo Finance
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