Prognosis
Pfizer-BioNTech Shot Could Help End Pandemic, Israel Study Shows
- Shot cleared hurdles for preventing spread, symptoms, deaths
- Effectiveness held up under scrutiny in real-world conditions
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Pfizer Inc. and BioNTech SE’s Covid-19 vaccine was overwhelmingly effective against the virus in a study that followed nearly 1.2 million people in Israel, results that public-health experts said show that immunizations could end the pandemic.