New Covid subvariants BA.4 and BA.5 are the most contagious yet – and driving Australia’s third Omicron wave | Adrian Esterman
by Adrian Esterman for the Conversation from World news | The Guardian on (#612J5)
The latest variants are masters at evading immunity - meaning previous infection and vaccines are unlikely to provide much protection against catching it
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Australia is heading for its third Omicron wave in the coming weeks, as BA.4 and BA.5 become the dominant Covid strains.
BA.4 and BA.5 are more infectious than previous Covid variants and subvariants, and are better able to evade immunity from vaccines and previous infections. So we're likely to see a rise in case numbers.
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