Shanghai, a city of 25 million people, has been locked down for nearly six weeks as it battles China's biggest coronavirus outbreak, but the government have shrugged off criticism of its zero-COVID strategy, saying it remains the best option.
Shanghai's "dynamic" zero-COVID policies would "overcome weak links in the immunological barrier in populations across the country", they said, pointing out that around 49 million people aged 60 and over were still unvaccinated.
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