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CDC Updates Cleaning Guidelines for Monkeypox

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On Aug. 4, the same day that the White House declared monkeypox a national public health emergency, the U.S. Centers for Disease Control and Prevention (CDC) issued significant, updated guidelines regarding the virus for cleaning professionals.

According to the CDC, monkeypox spreads between people through direct contact with an infectious rash, body fluids, or by respiratory secretions during prolonged, face-to-face contact. Transmission of Monkeypox virus is possible from the onset of the first symptoms until the scabs have separated and the skin has completely healed.

During the infectious period of time, body fluids, respiratory secretions, and lesion material from people with monkeypox can contaminate the environment. Poxviruses can survive in linens, clothing, and on environmental surfaces, particularly when in dark, cool, and low humidity environments. In one study, investigators found live virus 15 days after a patient’s home was left unoccupied. Studies show that other closely related orthopoxviruses can survive in an environment, similar to a household, for weeks or even months. Porous materials (bedding, clothing, etc.) might harbor live virus for longer periods of time than non-porous (plastic, glass, metal) surfaces.

With these facts in mind, all cleaning professionals and building facilitators should consider putting into practice these CDC recommendations:

  • Communicate with staff, volunteers, and residents. Provide clear information to staff, volunteers, and residents about monkeypox prevention, including the potential for transmission through close, sustained physical contact, including sexual activity. Provide prevention guidance including considerations for safer sex. Keep messages fact-based to avoid introducing stigma when communicating about monkeypox.
  • Respond to cases. Consider the following actions to respond to cases in the facility:
    • Test and medically evaluate staff, volunteers, or residents who are suspected to have monkeypox. Ideally, people identified to have monkeypox will remain isolated away from others until there is full healing of the rash with formation of a fresh layer of skin, which typically takes two to four weeks.
    • Consult your state, tribal, local, or territorial health department before discontinuing isolation.
    • Ensure that residents with monkeypox wear a well-fitting disposable mask over their nose and mouth and cover any skin lesions with long pants and long sleeves, bandages, or a sheet or gown if they need to leave the isolation area or if isolation areas are not yet available. Some facilities might be able to provide isolation on-site while others may need to move residents off site to isolate. Resident isolation spaces should have a door that can be closed and a dedicated bathroom that other residents do not use. Multiple residents who test positive for monkeypox can stay in the same room.
    • Isolate staff or volunteers who have monkeypox away from congregate settings until they are fully recovered. Flexible, nonpunitive sick leave policies for staff members are critical to prevent spread of monkeypox.
    • Reduce the number of staff who are entering the isolation areas to staff who are essential to isolation area operations.
    • Manage waste from isolation areas (i.e., handling, storage, treatment, and disposal of soiled personal protective equipment (PPE), patient dressings, etc.) in accordance with U.S. Department of Transportation (DOT) Hazardous Materials Regulations (HMR; 49 CFR, Parts 171-180.). Required waste management practices and category designation can differ depending on the monkeypox virus clade (strain) the patient has. Cases in the current outbreak have been identified to be West African clade, and waste from these patients is classified as regulated medical waste (Category B). See the DOT website for more information. Facilities should also comply with state and local regulations for handling, storage, treatment, and disposal of waste.
  • Identify people who might have been exposed to monkeypox. Facilities should work with their health department to identify and monitor the health of any staff, volunteers, or residents who might have had close contact with someone who has monkeypox. Contact tracing can help identify people with exposure and help prevent additional cases. However, this might not be feasible in all settings.
    • Use exposure risk assessment recommendations to identify people who had high degree of exposure to someone with monkeypox, where possible. The health department can provide post-exposure vaccination for people with high degree exposures.
    • In facilities where contact tracing is not feasible, staff, volunteers, and residents who spent time in the same area as someone with monkeypox should be considered to have intermediate or low degree of exposure, depending on the characteristics of the setting (e.g., level of crowding). Post-exposure vaccination is not necessary for low or intermediate degree exposures unless deemed appropriate by the state or local health department.
  • Ensure access to handwashing. Soap and water or hand sanitizer with at least 60% alcohol should be available at all times and at no cost to staff, volunteers, and residents. Anyone who touches lesions or clothing, linens, or surfaces that might have had contact with lesions should wash their hands immediately.
  • Clean and disinfect the areas where people with monkeypox spent time. Avoid activities that could spread dried material from lesions (e.g., use of fans, dry dusting, sweeping, or vacuuming) in these areas. Perform disinfection using an U.S. Environmental Protection Agency (EPA)–registered disinfectant with an Emerging Viral Pathogens claim, which may be found on EPA’s List Q. Follow the manufacturer’s directions for concentration, contact time, and care and handling. Linens can be laundered using regular detergent and warm water. Soiled laundry should be gently and promptly contained in a laundry bag and never be shaken or handled in a manner that may disperse infectious material. Covering mattresses in isolation areas (e.g., with sheets, blankets, or a plastic cover) can facilitate easier laundering.
  • Provide appropriate personal protective equipment (PPE) for staff, volunteers, and residents. Employers are responsible for ensuring that workers are protected from exposure to Monkeypox virus and that workers are not exposed to harmful levels of chemicals used for cleaning and disinfection. PPE should be worn by staff, volunteers, or residents in these circumstances:
    • Entering isolation areas—Staff who enter isolation areas should wear a gown, gloves, eye protection, and a National Institute for Occupational Safety and Health (NIOSH)-approved particulate respirator equipped with N95 filters or higher.
    • Laundry—When handling dirty laundry from people with known or suspected monkeypox infection, staff, volunteers, or residents should wear a gown, gloves, eye protection, and a well-fitting mask or respirator. PPE is not necessary after the wash cycle is completed.
    • Cleaning and disinfection—Staff, volunteers, or residents should wear a gown, gloves, eye protection, and a well-fitting mask or respirator when cleaning areas where people with monkeypox spent time.

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