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Jack Dorsey is the chief executive officer of Twitter Inc. and Square Inc.

Jack Dorsey is stepping down as CEO of Twitter

By Brian Fung, CNN Business Jack Dorsey, the cofounder and public face of Twitter, will step down from his role as CEO, effective immediately, the company announced Monday. Dorsey will remain a member of Twitter’s board until at least next year. Parag Agrawal, Twitter’s chief technology officer, will take over as CEO. “I’ve decided to

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Nathan Tyler Valencia died just days after participating in a fraternity's charity boxing match where he collapsed soon after the fight

A University of Nevada Las Vegas student dies days after participating in fraternity charity boxing match

By Melissa Alonso and Keith Allen, CNN A University of Nevada Las Vegas student died just days after participating in a fraternity’s charity boxing match where he collapsed soon after the fight, according to statements from the university and his family’s attorney. In what the school described as “a tragic incident,” Nathan Tyler Valencia, 20,

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The pandemic will continue to rage as long as the WTO keeps bickering over vaccine rules

Opinion by Joseph Stiglitz and Lori Wallach for CNN Business Perspectives If international organizations are subject to karma, last week’s abrupt postponement of the World Trade Organization (WTO) Ministerial Conference, the body’s first major decision-making gathering in four years, was fated to be. News of the emergence of Omicron, the latest coronavirus variant, not only

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COVID-19 sample viles are shown during preparation for isolation and extraction at the Genview Diagnosis lab on August 13

Coronavirus variants: Here’s what we know

By Maggie Fox, CNN Omicron, the newest coronavirus variant, is also the quickest to be labeled a “variant of concern” by the World Health Organization because of its seemingly fast spread in South Africa and its many troubling mutations. Its emergence has already led to travel restrictions, high-level government meetings and promises by vaccine makers

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