Pooled testing involves mixing several test samples together in a “batch” or “pool,” and then testing the pooled sample with a diagnostic, PCR test for detection of SARS-CoV-2. This approach increases the number of individuals that can be tested using the same amount of laboratory resources as a single PCR test.
The test is performed at least once per week on an anterior nasal swab and results are delivered within approximately 24-48 hours. If a pooled test result is negative, then all individuals within that pool are presumed negative and may continue to remain in school. If a pooled test result is positive, then everyone in the pool is given an individual diagnostic test. Once positive individuals are identified, they must follow isolation guidance. Students, teachers, and staff that were close contacts of the positive case must quarantine according to current requirements.