The daily business briefing: March 22, 2021

U.S. trial shows AstraZeneca's vaccine is 79 percent effective against COVID, Texas Roadhouse founder Kent Taylor dies at 65, and more

The AZ vaccine boxes
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1. U.S. trial: AstraZeneca vaccine 79 percent effective against COVID

A large U.S. trial found that AstraZeneca's coronavirus vaccine is 79 percent effective against symptomatic COVID-19, and 100 percent effective at preventing severe cases and hospitalization, according to an analysis published Monday. The latest news on the vaccine, which AstraZeneca developed with Oxford University, came after major European countries briefly suspended use of the vaccine due to concerns it could be linked to blood clots in small numbers of vaccinated people. European regulators have since declared that the vaccine is safe and effective, and Germany, France, Italy, Spain, and other countries have resumed its use. Trials have shown that Moderna's vaccine is more than 94 percent effective in preventing COVID, and the Pfizer-BioNTech vaccine is 95 percent effective.

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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.