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Immune period for COVID positive cases could be reduced from 12 weeks to 28 days

The period of time in which a COVID-positive person is considered immune after infection may be slashed from 12 weeks to 28 days following a recommendation by Australia’s top public health officers.

The Australian Health Protection Principal Committee (AHPCC) last week said the rise of the BA.4 and BA.5 strains had also seen reinfections increase.

In a statement, the committee said the immune period should be adjusted as people were getting reinfected earlier.

“BA.4 and BA.5 are associated with increased immune escape, and we are likely to see rates of reinfection rise among those who have previously been infected with an earlier COVID-19 variant and those who are up to date with their vaccinations,” the statement read.

“Given reinfections may occur as early as 28 days after recovery from a previous COVID-19 infection, the AHPPC advises that the reinfection period be reduced from 12 weeks to 28 days.

“People who test positive to COVID-19 more than 28 days after ending isolation due to previous infection should be reported and managed as new cases.”

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