Covid-19 vaccines helped to prevent tens of thousands of deaths among seniors in the US between January and May of this year. Despite their widespread availability and efficacy, many people are refusing a shot.
This is the weekly edition of CNN's coronavirus newsletter. Look out for your roundup every Wednesday. If you haven't subscribed yet, sign up here. When South African officials sounded the alarm on the new Omicron variant last Thursday, stocks around the world tumbled and up to 70 countries, including the United States, imposed travel bans and restrictions to southern African countries.
The knee-jerk response followed the news that the variant had an unusually high number of mutations, which scientists feared could make it more transmissible and result in immune evasion. Much is still unknown about Omicron, including its origin, severity and its transmissibility. Researchers are also racing to discover if it could displace existing variants and become dominant, as Delta has.
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Border closures won't do much to stop Omicron, expert says, and could be counterproductivePresident Biden’s decision late last week to ban travel from eight southern African countries is unlikely to curb the spread of the Omicron coronavirus variant, an epidemiologist warns, and could even be counterproductive.
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