Etichetta: subvariants

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Rise of Omicron subvariants sends UK staff absence soaring

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The rapid spread of Covid-19 infections in the past month has sent the number of workers taking sick leave soaring, according to official figures, making staff shortages even worse and forcing many employers to shut d...

Atagi considers fourth Covid vaccine doses as Omicron subvariants drive surge in cases

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Australia’s independent expert advisory group on vaccines is meeting to discuss fourth Covid-19 booster doses, as Omicron subvariants drive a rise in infections, leading some premiers to urge people to wear masks more...

New Covid subvariants BA.4 and BA.5 are the most contagious yet – and driving Australia’s third Omicron wave

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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 a...

Concern grows as two new Omicron sub-variants spread across US

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Two new sub-variants of Omicron are spreading throughout the US, leaving experts concerned about their transmissibility amid America’s ongoing Covid-19 pandemic. According to new data from the Centers for Disease Cont...

Three new Covid Omicron subvariants detected in Australia

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Three new Omicron subvariants have reached Australia and health authorities say people who contract the virus should wait three months before getting their next Covid-19 vaccination. Assoc Prof Stuart Turville from th...