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Pfizer says its COVID-19 vaccine is more than 90% effective

Name: Pfizer says its COVID-19 vaccine is more than 90% effective
Uploaded: 2020-11-10T07:30:08-0500
Duration: 4 min 38 s
Description: Pfizer says its new coronavirus vaccine has proven to be more than 90% effective, and it could be used before the end of the year. Dr. Jon LaPook reports.

Pfizer says its new coronavirus vaccine has proven to be more than 90% effective, and it could be used before the end of the year. Dr. Jon LaPook reports.