Will Americans have the right COVID-19 vaccine this fall? Maybe
In a few short months, the weather will turn crisp, the holiday season will draw near, and the coronavirus may embark on its third consecutive winter of death and devastation.
That prospect has federal regulators and their scientific advisors engaged in a high-stakes guessing game.
The question: How should the COVID-19 vaccine change?
Certainly, the circumstances have changed. The coronavirus strains responsible for 97% of infections today — BA.4, BA.5 and BA.2.12.1 — didn't exist in 2021, let alone in 2020. Yet all of the vaccines currently available in the U.S. are designed to recognize the version that left China in January 2020.
The shots have done . Researchers credit them with in their first year of availability, and they continue to
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