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CDC offers guidance on when to close schools & disinfect for COVID-19

More than 200 universities and more than 35 states have closed K-12 school facilities as of press time in an effort to stop the spread of COVID-19 throughout the United States.

The Centers for Disease Control offers facility-specific guidance to help administrators decide when to close their facilities, as well as how to disinfect their space effectively.  

“Schools, working together with local health departments, have an important role in slowing the spread of diseases to help ensure students have safe and healthy learning environments. Schools serve students, staff, and visitors from throughout the community. All of these people may have close contact in the school setting, often sharing spaces, equipment, and supplies,” according to the CDC website.

The site offers FMs advice for the following school and government-funded environments:

According to the CDC’s guidance:

“Clean and disinfect thoroughly.

  • Close off areas used by the individuals with COVID-19 and wait as long as practical before beginning cleaning and disinfection to minimize the 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.
  • Cleaning staff should clean and disinfect all areas (e.g., offices, bathrooms, and common areas) used by the ill persons, focusing especially on frequently touched surfaces.
  • If surfaces are dirty, they should be cleaned using a detergent or soap and water prior to disinfection.
  • For disinfection, the most common EPA-registered household disinfectants should be effective.
  • A list of products that are EPA-approved for use against the virus that causes COVID-19 is available here. Follow the manufacturer’s instructions for all cleaning and disinfection products (e.g., concentration, application method and contact time, etc.).
  • Additionally, diluted household bleach solutions can be used if appropriate for the surface. Follow manufacturer’s instructions for application and proper ventilation. Check to ensure the product is not past its expiration date. Never mix household bleach with ammonia or any other cleanser. Unexpired household bleach will be effective against coronaviruses when properly diluted.  Prepare a bleach solution by mixing:
  •  5 tablespoons (1/3rd cup) bleach per gallon of water or
  • 4 teaspoons bleach per quart of water
  • Additional information on cleaning and disinfection of community facilities such as schools can be found on CDC’s website.”
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