Albert Bourla, Pfizer CEO (Gian Ehrenzeller/Keystone via AP Images)
Pfizer, BioNTech say Covid-19 vaccine is more than 90% effective, exceeding expert expectations and setting up an EUA submission late this month
For 10 months, the US and the world have wondered and watched and waited for when an effective Covid-19 vaccine will arrive. Pfizer said Monday …
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