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Markets fall on Omicron fears as officials offer vaccine reassurance

Financial markets fell sharply on Tuesday after the head of drugmaker Moderna said existing COVID-19 vaccines would be less effective against the new Omicron variant, but they recovered strongly after more reassuring comments from European officials. European Medicines Agency executive director Emer Cooke told the European Parliament that existing vaccines …

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Twitter CEO Jack Dorsey to step down

Twitter Inc Chief Executive Officer Jack Dorsey will step down from his role and Chief Technology Officer Parag Agrawal will become his successor, Twitter announced on Monday. Dorsey’s departure marks the end of his second CEO stint at the social networking site, and he leaves at a time when Twitter …

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