Pfizer data show vaccine efficacy wanes after 6 months
The company is calling for booster shots but doctors say we’re not at that point yet. ABC News Live Update, Weekdays at 9 AM & 11AM EST WATCH the ABC News Live Stream: https://bit.ly/3rzBHum SUBSCRIBE to ABC News: https://bit.ly/2vZb6yP Watch More on http://abcnews.go.com/ LIKE ABC News on FACEBOOK: https://ift.tt/1bxu5fI FOLLOW ABC News on TWITTER: https://twitter.com/abc #ABC #ABCNews #Pfizer #Booster #Vaccines #Coronavirus #COVID-19
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