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COVID-19

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Doctor explains effectiveness of COVID vaccine

AstraZeneca announced Monday that its COVID-19 vaccine is up to 90% effective and even shows signs of reducing asymptomatic spread. It's effectiveness varied during clinical trials, depending on the dosage, but still averaged 70%. Dr. Uzma Syed, an infection disease specialist at New York's Good Samaritan Hospital Medical Center and director of Antimicrobial Stewardship Center of Excellence, joins CBSN's Elaine Quijano to discuss if the variation in effectiveness is something people should be concerned about.

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Holiday shopping: Supporting small businesses

This holiday season will be an important one for small businesses that have been hit hard throughout the COVID-19 pandemic. According to data from the Opportunity Insights Economic Tracker based out of Harvard University, small business revenue in the U.S. has decreased by 31% compared to January 2020. Barbara Kahn, professor of marketing at the University of Pennsylvania's Wharton School and author of "The Shopping Revolution," joins CBSN to discuss what to keep in mind ahead of Small Business Saturday.

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