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Coronavirus vaccine: Oxford AstraZeneca trial volunteer dies in Brazil
By Carolyn Johnson & Terrence McCoy
COVID vaccine: Children left out of clinical trials, until now
By Karen Weintraub
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Vaccine deal allows AstraZeneca to take up to 20% on top of costs
By Donato Paolo Mancini & Clive Cookson
Coronavirus vaccine volunteer in Brazil's AstraZeneca trial dies -- but authorities say trial to continue
By Jo Shelley & Jacqueline Howard
AstraZeneca shares turn negative after Brazilian health authority says volunteer in Covid vaccine study dies
By Berkeley Lovelace & Berkeley Lovelace Jr.
Oxford Developed Covid Vaccine, Then Scholars Clashed Over Money
By Stu Woo & Jenny Strasburg
Oxford Covid vaccine trials offer hope for elderly
By Sarah Neville, Clive Cookson & Anna Gross