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Coronavirus: What I learnt in Oxford's vaccine trial
Why vaccines are less effective in the elderly, and what it means for COVID-19
By Byram Wayne Bridle & Shayan Sharif
New data offer glimpse of efficacy of Oxford-AstraZeneca Covid-19 vaccine
By Helen Branswell, Matthew Herper & Damian Garde
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Where do COVID-19 vaccine players stand on pricing? So far, it's no profit, slight profit or undecided
By Eric Sagonowsky
Some Vaccine Makers Say They Plan to Profit From Coronavirus Vaccine (Published 2020)
By Katherine J. Wu
A COVID-19 Vaccine Reality Check
By Sarah Zhang