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Detection of SARS-CoV RNA from the seeded samples for 7 days. (1) Negative control; (2) cell control; (3) positive control (348 bp); (4) marker (pUC19 DNA/MSP I Marker); (5) wastewater of the 309th hospital; (6) normal saline; (7) municipal sewage; (8) dechlorinated water.
