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Cleaning and disinfection for households : interim recommendations for U.S. households with suspected or confirmed coronavirus disease 2019 (COVID-19)
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  • Alternative Title:
    Cleaning & disinfection for households : interim recommendations for U.S. households with suspected or confirmed coronavirus disease 2019 (COVID-19)
  • Description:
    There is much to learn about the novel coronavirus (SARS-CoV-2) that causes coronavirus disease 2019 (COVID-19). Based on what is currently known about COVID-19, spread from person-to-person of this virus happens most frequently among close contacts (within about 6 feet). This type of transmission occurs via respiratory droplets. On the other hand, transmission of novel coronavirus to persons from surfaces contaminated with the virus has not been documented. Recent studies indicate that people who are infected but do not have symptoms likely also play a role in the spread of COVID-19. Transmission of coronavirus occurs much more commonly through respiratory droplets than through objects and surfaces, like doorknobs, countertops, keyboards, toys, etc. Current evidence suggests that SARS-CoV-2 may remain viable for hours to days on surfaces made from a variety of materials. Cleaning of visibly dirty surfaces followed by disinfection is a best practice measure for prevention of COVID-19 and other viral respiratory illnesses in households and community settings. It is unknown how long the air inside a room occupied by someone with confirmed COVID-19 remains potentially infectious. Facilities will need to consider factors such as the size of the room and the ventilation system design (including flowrate [air changes per hour] and location of supply and exhaust vents) when deciding how long to close off rooms or areas used by ill persons before beginning disinfection. Taking measures to improve ventilation in an area or room where someone was ill or suspected to be ill with COVID-19 will help shorten the time it takes respiratory droplets to be removed from the air.
  • Content Notes:
    Background -- Purpose -- General recommendations for routine cleaning and disinfection of households -- General recommendations for cleaning and disinfection of households with people isolated in home care (e.g. suspected/confirmed to have COVID-19) -- How to clean and disinfect: Hard (Non-porous) Surfaces; Soft (Porous) Surfaces; Electronics; Linens, clothing, and other items that go in the laundry -- Hand hygiene and other preventive measures -- Other considerations.
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