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Pfizer's COVID-19 vaccine is over 90% effective, shows data

Pfizer and BioNTech's COVID-19 Vaccine: The phase 3 trials have involved more than 43,000 people and across diverse backgrounds. According to the company, gathering the required safety data will take until the third week of November this year.

November 09, 2020 / 05:45 PM IST

Pfizer says an early peek at its vaccine data suggests the shots may be 90% effective at preventing COVID-19, indicating the company is on track later this month to file an emergency use application with U.S. regulators.

Monday's announcement doesn't mean a vaccine is imminent: This interim analysis, from an independent data monitoring board, looked at 94 infections recorded so far in a study that has enrolled nearly 44,000 people in the U.S. and five other countries.

Pfizer Inc. did not provide any more details about those cases, and cautioned the initial protection rate might change by the time the study ends. Even revealing such early data is highly unusual.