High vaccination rates no match for delta as covid-19 variant surges

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Commuters wearing face masks on the London Underground

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THE highly infectious delta coronavirus variant is continuing to spread around the world, causing rising case numbers even in countries with high vaccination rates. Some countries that kept previous variants under control are struggling to contain delta, such as Thailand and Vietnam.

Some nations are imposing fresh restrictions to curb delta’s spread, including Iran and Indonesia. But others are relaxing restrictions. Despite soaring case numbers, England is set to end almost all restrictions on 19 July. The health secretary, Sajid Javid, warned …

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