The daily business briefing: November 23, 2020

Oxford-AstraZeneca COVID-19 vaccine proves up to 90 percent effective, rights experts call Ghosn's detention "arbitrary," and more

Vaccine from Oxford and AstraZeneca
(Image credit: JUSTIN TALLIS/AFP via Getty Images)

1. Oxford-AstraZeneca COVID-19 vaccine up to 90 percent effective

Oxford University and drugmaker AstraZeneca announced Monday that their COVID-19 vaccine candidate was at least 70 percent effective in its Phase Three trial of 20,000 volunteers in Britain and Brazil. And Oxford Vaccine Group director Andrew Pollard told BBC Radio 4 Today that the vaccine appeared to be 90 percent effective when people were given a half-dose of the vaccine followed by a full dose. Britain has ordered 100 million doses of the Oxford vaccine, and if U.K. regulators approve it for emergency use, the country is ready to roll out an aggressive immunization program. Rival vaccines from Pfizer and Moderna proved to be 95 percent effective, but 70 percent effectiveness would be really good for a vaccine. The Oxford vaccine also requires only refrigeration, not freezing or subfreezing temperatures like the other vaccines.

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Harold Maass, The Week US

Harold Maass is a contributing editor at The Week. He has been writing for The Week since the 2001 debut of the U.S. print edition and served as editor of TheWeek.com when it launched in 2008. Harold started his career as a newspaper reporter in South Florida and Haiti. He has previously worked for a variety of news outlets, including The Miami Herald, ABC News and Fox News, and for several years wrote a daily roundup of financial news for The Week and Yahoo Finance.