2024 Update
The new guidance states that:
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For COVID-19 cases with symptoms, the infectious period is a minimum of 24 hours from the day of symptom onset. Individuals may return to work or school if 24 hours have passed with no fever, without the use of fever-reducing medications, and their symptoms are mild and improving.
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For COVID-19 cases with no symptoms, there is no infectious period for the purpose of isolation or exclusion. If symptoms develop, the criteria above will apply.
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Masking recommendations of 10 days for individuals who have tested positive for COVID-19 or have respiratory symptoms haven’t changed.
For those who have close contact with a confirmed COVID-19 case but are symptom-free, testing is now only recommended for individuals who are at a higher risk of severe illness or have contact with high-risk individuals. Those with symptoms are still advised to get tested and follow masking recommendations.