Pfizer developing Covid-19 vaccine booster targeting Delta variant
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Pfizer developing Covid-19 vaccine booster targeting Delta variant
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Study Shows 2 Shots of Pfizer COVID-19 Vaccine is ‘Highly Effective’ Against Delta Variant
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Johnson & Johnson vaccine much less effective against delta variant…
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Delta variant now accounts for more than 80 percent of new Covid cases in four states
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Delta variant now accounts for more than 80 percent of new Covid case…
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Delta Variant: Pfizer Says Its Vaccine Highly Effective Against New Variant of Coronavirus
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Pfizer CEO on vaccine supply
2021年6月15日
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COVID-19 vaccine around 90% effective against Delta variant: Pfi…
2021年6月24日
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fox5ny.com
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Israel offers Pfizer vaccine booster as delta variant spreads
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Delta variant spreads as Pfizer looks to administer third shot
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Pfizer vaccine 88% effective against delta variant, study finds
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Pfizer vaccine not as effective against Delta variant, study says
2021年7月27日
fox26houston.com
Moderna 76% effective against Covid-19 Delta variant, Pfizer 42%…
2021年8月12日
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2021年8月25日
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The COVID-19 Delta variant: What you need to know
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Delta variant is now the dominant COVID variant in the U.S.
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