Britain has agreed to buy 35 million more doses of the Pfizer/BioNTech COVID-19 vaccine, to be delivered from the second half of next year, as part of its preparations for booster shots and any new variants that could emerge.

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London: "While we continue to build this wall of defence from COVID-19, it's also vital we do everything we can to protect the country for the future too – whether that's from the virus as we know it or new variants," health minister Sajid Javid said.