Pfizer's COVID-19 vaccine: A timeline of key events1 min read . Updated: 10 Nov 2020, 07:20 AM IST
- Key events in the development of a COVID-19 vaccine by partners Pfizer Inc. and Germany's BioNTech
Pfizer Inc on Monday said a coronavirus vaccine it’s developing prevented more than 90% of infections in a study, potentially speeding the economic recovery from the pandemic and dimming hopes for additional stimulus.
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