The new guidance states that:
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.
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.
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.