‘No need to panic,’ China official says of coronavirus variants Friday, 01 Jan 2021 09:59 PM MYT Xu added that mutation in the virus’ protein would not effect the sensitivity of most Chinese-made Covid-19 tests. — Reuters pic

BEIJING, Jan 1 —There is no sign new coronavirus variants will affect the immune impact of a vaccine that China has just authorised for public use, a disease control official was quoted as saying today.…

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