Air Surface Environmental and Personal Protective Equipment Contamination by Severe Acute Respiratory Syndrome Coronavirus 2

This research letter describes surface environmental sampling in airborne infection isolation rooms (AIIR) with anterooms and personal protective equipment (PPE) of physicians exiting patients’ rooms, and air sampling in a dedicated COVID-19 treatment center in Singapore. Only one of the PPE swabs was positive and all air samples were negative. Environmental samples from AIIRs after routine cleaning were negative. Extensive environmental contamination was found prior to routine cleaning in 13 of 15 AIIR room sites and 3 (toilet bowl, sink, door handle) of 5 bathroom sites, but samples from the anteroom and corridor were negative.
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