Breaking news from The Wall Street Journal.
News Alert | Pfizer to Ask Regulators to Authorize Covid-19 Vaccine Booster |
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| Pfizer will seek clearance from U.S. regulators in coming weeks to distribute a booster shot of its Covid-19 vaccine to heighten protection against infections as new virus strains rise. The company said also it plans to start clinical trials in August of an updated version of its vaccine that would better protect against the Delta variant. |
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