First Omicron wave was really twice the size of recorded cases, study says

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First Omicron wave was really twice the size of recorded cases, study says
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The number of COVID infections in Australia was probably at least twice what was reported among adults during the first major Omicron wave, with Queensland having the worst rate of all the states marywardy lucy_carroll

The number of COVID-19 infections in Australia was likely at least twice what was reported among adults during the first major Omicron wave, with Queensland recording the highest rate of any state.

Twenty-three per cent of Victorian samples and 21 per cent of NSW samples showed antibodies gained by a prior infection. Western Australia was the outlier, with only 0.5 per cent of samples suggesting a prior case, as the state kept its borders shut until early March.

Ninety-eight per cent of samples surveyed had the types of antibodies gained from prior infection or vaccination. “We knew we were only catching a fraction of the cases [in Queensland],” he said, adding that the state had a high test positivity rate over its Omicron wave, struggled with PCR testing capacity and, like other states, been slow to provide a way for the public to report rapid antigen test results.

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