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What's the best guidance for cleaning a facility when someone may have been sick?

It is recommended to close off areas used by anyone who is ill or has symptoms and wait as long as practical before beginning cleaning and disinfection to minimize potential for exposure to respiratory droplets. Open outside doors and windows to increase air circulation in the area. If possible, wait up to 24 hours before beginning cleaning and disinfection.

In areas where ill persons have visited or used, continue routine cleaning and disinfection in the guidance below. More info may be found at:

Updated/Reviewed: 3/24/20