Google to spend US$2.1 billion on Manhattan campus acquisition

A man using a mobile phone walks past Google offices in New York, on Dec. 17, 2018. (Mark Lennihan / AP) A man using a mobile phone walks past Google offices in New York, on Dec. 17, 2018. (Mark Lennihan / AP)

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Why COVID-19 boosters weren't tweaked to better match variants

More COVID-19 booster shots may be on the way -- but when it's your turn, you'll get an extra dose of the original vaccine, not one updated to better match the extra-contagious delta variant. And that has some experts wondering if the booster campaign is a bit of a missed opportunity to target delta and its likely descendants.

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