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A Guide to Global COVID-19 Vaccine Efforts
By Claire Klobucista
Dr. Fauci says it's important to wear a mask even after getting the Covid vaccine. Here's why
By Noah Higgins-Dunn
Comparing the Covid-19 vaccines developed by Pfizer, Moderna, and Johnson & Johnson
By Helen Branswell
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Study reveals extent of Covid vaccine side-effects
By Michelle Roberts
The Coronavirus Vaccine Presents a Dilemma for Pregnant Women
By Anna Louie Sussman
Moderna wants to increase the number of vaccine doses in each vial. (Published 2021)
By Sharon LaFraniere & NOAH WEILAND
More than 100,000 people have died of Covid-19 in the US since January 1, JHU data shows
By Holly Yan, Madeline Holcombe & Amir Vera
Canada takes Covid vaccines from Covax program despite side deals
By Michael Safi & Leyland Cecco
Covid-19 Vaccine Hesitancy Presents Challenge for Herd-Immunity Push
By Julie Wernau & Paul Overberg
Covid: New Oxford vaccine 'ready by the autumn' to tackle mutations
By Philippa Roxby & Nick Triggle
Vaccine News Gives Hope for Spring, if Enough People Get the Shots (Published 2021)
By Rebecca Robbins & Katie Thomas
How Covid-19 vaccines work
By Maggie Fox