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Factors that affect the recovery of SARS-CoV-2 RNA in wastewater
| Sample volume (ml) | PEG-NaCl % (w/v) | Incubation time (h) | Storage duration at 4°C (day) | |
|---|---|---|---|---|
| Sample volume (ml) | 50, 100, and 250a | 10 | 12 | 1 |
| PEG-NaCl (%) | 100 | 10, 20, and 30a | 12 | 2 |
| Incubation time (h) | 100 | 10 | 6, 12, and 18a | 3 |
| Storage duration at 4°C (day) | 100 | 10 | 12 | 1, 7, and 14a |
The test values of each factor compared with the standard protocol.
