Aerosol transmissible disease (ATD) or aerosol transmissible pathogen (ATP) - A disease or pathogen for which droplet or airborne precautions are required, as listed in Appendix A.
Airborne infection isolation (AII) - Infection control procedures as described in Guidelines for Preventing the Transmission of Mycobacterium tuberculosis in Health-Care Settings. These procedures are designed to reduce the risk of transmission of airborne infectious pathogens, and apply to patients known or suspected to be infected with epidemiologically important pathogens that can be transmitted by the airborne route.
Airborne infection isolation room or area (AIIR) - A room, area, booth, tent, or other enclosure that is maintained at negative pressure to adjacent areas in order to control the spread of aerosolized M. tuberculosis and other airborne infectious pathogens and that meets the requirements stated in subsection (e)(5)(D) of this standard.
Airborne infectious disease (AirID) - Either: (1) an aerosol transmissible disease transmitted through dissemination of airborne droplet nuclei, small particle aerosols, or dust particles containing the disease agent for which AII is recommended by the CDC or CDPH, as listed in Appendix A, or (2) the disease process caused by a novel or unknown pathogen for which there is no evidence to rule out with reasonable certainty the possibility that the pathogen is transmissible through dissemination of airborne droplet nuclei, small particle aerosols, or dust particles containing the novel or unknown pathogen.
Airborne infectious pathogen (AirIP) - Either: (1) an aerosol transmissible pathogen transmitted through dissemination of airborne droplet nuclei, small particle aerosols, or dust particles containing the infectious agent, and for which the CDC or CDPH recommends AII, as listed in Appendix A, or (2) a novel or unknown pathogen for which there is no evidence to rule out with reasonable certainty the possibility that it is transmissible through dissemination of airborne droplet nuclei, small particle aerosols, or dust particles containing the novel or unknown pathogen.
CDC - United States Centers for Disease Control and Prevention.
CDPH - California Department of Public Health and its predecessor, the California Department of Health Services (CDHS).
Case - Either of the following: (1) A person who has been diagnosed by a health care provider who is lawfully authorized to diagnose, using clinical judgment or laboratory evidence, to have a particular disease or condition. (2) A person who is considered a case of a disease or condition that satisfies the most recent communicable disease surveillance case definitions established by the CDC and published in the Morbidity and Mortality Weekly Report (MMWR) or its supplements.
Droplet precautions - Infection control procedures as described in Guideline for Isolation Precautions are designed to reduce the risk of transmission of infectious agents through contact of the conjunctivae or the mucous membranes of the nose or mouth of a susceptible person with large-particle droplets (larger than 5 mm in size) containing microorganisms generated from a person who has a clinical disease or who is a carrier of the microorganism.
Exposure incident - An event in which all of the following have occurred: (1) An employee has been exposed to an individual who is a case or suspected case of a reportable ATD, or to a work area or to equipment that is reasonably expected to contain ATPs associated with a reportable ATD; and (2) The exposure occurred without the benefit of applicable exposure controls required by this section, and (3) It reasonably appears from the circumstances of the exposure that transmission of disease is sufficiently likely to require medical evaluation.
Guidelines for Preventing the Transmission of Mycobacterium tuberculosis in Health-Care Settings - The Guidelines for Preventing the Transmission of Mycobacterium tuberculosis in Health-Care Settings, December 2005, CDC, which is hereby incorporated by reference for the sole purpose of establishing requirements for airborne infection isolation.
High hazard procedures - Procedures performed on a person who is a case or suspected case of an aerosol transmissible disease in which the potential for being exposed to aerosol transmissible pathogens is increased due to the reasonably anticipated generation of aerosolized pathogens. Such procedures include, but are not limited to, sputum induction, bronchoscopy, aerosolized administration of pentamidine or other medications, and pulmonary function testing. High Hazard Procedures also include, but are not limited to, autopsy, clinical, surgical and laboratory procedures that may aerosolize pathogens.
High risk settings The more a person interacts with others, and the longer that interaction lasts, the higher the risk of ATP spread in the community. Risk is also affected by factors such as background rates of infection in the community and individuals’ compliance with mitigation strategies, such as use of masking, social distancing, and hand hygiene. CSUDH will communicate their selected level of risk so that people can make more informed decisions about attendance, especially those with disabilities and people who are at higher risk of severe illness from COVID. The risk of COVID-19 spread increases in IHE non-residential (i.e., off-campus housing) and residential (i.e., on-campus housing) settings with the level of COVID activity in the community.
Laboratory. A facility or operation in a facility where the manipulation of specimens or microorganisms is performed for the purpose of diagnosing disease or identifying disease agents, conducting research or experimentation on microorganisms, replicating microorganisms for distribution or related support activities for these processes.
Occupational exposure - Exposure from work activity or working conditions that is reasonably anticipated to create an elevated risk of contracting any disease caused by ATPs if protective measures are not in place. In this context, “elevated” means higher than what is considered ordinary for employees having direct contact with the general public. Whether a particular employee has occupational exposure depends on the tasks, activities, and environment of the employee, and therefore, some employees of a covered employer may have no occupational exposure. For example, occupational exposure typically does not exist where a hospital employee works only in an office environment separated from patient care facilities, or works only in other areas separate from those where the risk of ATD transmission, whether from patients or contaminated items, would be elevated without protective measures.
Referring employer - Any employer that operates a facility, service, or operation in which there is occupational exposure, and which refers AirID cases and suspected cases to other facilities. Referring facilities, services and operations do not provide diagnosis, treatment, transport, housing, isolation or management to persons requiring AII. General acute care hospitals are not referring employers. Law enforcement, corrections, public health, and other operations that provide only non- medical transport for referred cases are considered referring employers if they do not provide diagnosis, treatment, housing, isolation or management of referred cases.
Respirator - A device which has met the requirements of 42 CFR Part 84, has been designed to protect the wearer from inhalation of harmful atmospheres, and has been approved by NIOSH. for the purpose for which it is used.
Respirator user - An employee who in the scope of their current job may be assigned to tasks which may require the use of a respirator, in accordance with subsection (g).
Respiratory Hygiene/Cough Etiquette in Health Care Settings. Respiratory Hygiene/Cough Etiquette in Health Care Settings, CDC, November 4, 2004, which is hereby incorporated by reference for the sole purpose of establishing requirements for source control procedures.
Source control measures - The use of procedures, engineering controls, and other devices or materials to minimize the spread of airborne particles and droplets from an individual who has or exhibits signs or symptoms of having an ATD, such as persistent coughing.