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In the first distribution push, 6.4 million doses of Pfizer's vaccine will be shipped across the U.S. (Published 2020)
By Rebecca Robbins
General: COVID-19 vaccines will be ready for delivery 24 hours after FDA authorization
By Luis Martinez
Moderna designed its coronavirus vaccine in just 2 days
By Andrew Dunn, Aria Bendix & Susie Neilson
Some companies will make big money off their COVID-19 vaccines — but not as much as they could
By Mark Gollom
Doctors say CDC should warn people the side effects from Covid vaccine shots won't be 'a walk in the park'
By Berkeley Lovelace & Berkeley Lovelace Jr.
How do we know Covid vaccines are safe?
By Michelle Roberts
What we know about AstraZeneca's head-scratching vaccine results. (Published 2020)
By Carl Zimmer & Rebecca Robbins
Oxford AstraZeneca Covid vaccine: everything we know so far
By Sarah Boseley & Ian Sample