What gets contaminated in COVID-19 isolation rooms?

A thorough swabbing of a hospital room reveals where the virus lurks
Hospital cleaning

Air vents and toilet bowls are key contamination sites in hospital rooms where patients with COVID-19 are isolated, doctors write in JAMA.

The Singaporean doctors performed 26 swabs around an isolation room at a dedicated COVID-19 treatment centre, where a symptomatic patient had been isolated, to identify the contamination points.