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Coronavirus vaccine: Oxford AstraZeneca trial volunteer dies in Brazil - The Washington Post
By Carolyn Johnson & Terrence McCoy
AstraZeneca, Johnson & Johnson resume late-stage Covid-19 vaccine trials
By Erika Edwards & Sara G. Miller
AstraZeneca shares turn negative after Brazilian health authority says volunteer in Covid vaccine study dies
By Berkeley Lovelace & Berkeley Lovelace Jr.
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COVID vaccine: Children left out of clinical trials, until now
By Karen Weintraub
Oxford Developed Covid Vaccine, Then Scholars Clashed Over Money
By Stu Woo & Jenny Strasburg