Crucial work will study how well current jabs work and whether they need to be updated to tackle new variant
Scientists in South Africa have begun crucial work to assess how well Covid vaccines hold up against the Omicron variant that has been detected in more than a dozen countries since it was formally reported last week.
The variant carries dozens of mutations that are expected to change how the virus behaves, including its ability to cause infection and how well it can hide from immune defences primed by vaccines or previous infection with an older variant.
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Source: The Guardian