Environmental samples Apartment 2020/Feb/14 SARS-CoV-2 was detected in surface samples (e.g. sink, faucet, and shower handle) of the restroom in a long-term vacant apartment at 16-floor, which is right above the restroom of an apartment with five persons with COVID-19 (confirmed between Jan 26 and 30) at 15-floor in Guangzhou. The possibility of aerosol diffusion through sewage pipe after flushing the toilet at the 15-floor restroom was further confirmed by an onsite tracer simulation experiment showing aerosols were found in the restroom of apartments at 25-floor (two cases confirmed on Feb 1) and 27-floor (two cases confirmed on Feb 6...
