Illinois Administrative Code › Title 77 - PUBLIC HEALTH › Part 696 - CONTROL OF TUBERCULOSIS CODE › Subpart A - GENERAL PROVISIONS › Section 696.100 - Definitions

Current through Register Vol. 48, No. 28, July 12, 2024
"Active Tuberculosis Disease" or "Active TB Disease" means a
				  diagnosis demonstrated by clinical, bacteriologic or diagnostic imaging
				  evidence, or a combination thereof. Persons who have been diagnosed as having
				  active TB and have not completed a course of TB treatment are still considered
				  to have active tuberculosis and may be infectious.
"Bacteriologic Examinations" means tests done in a
				  mycobacteriology laboratory to diagnose active TB disease, including smears for
				  acid-fast bacilli (AFB), cultures and other tests for Mycobacterium (M.)
				  tuberculosis, and drug susceptibility tests.
"Confirmed Case" means an occurrence of active TB disease
				  that is laboratory confirmed or, in the absence of laboratory confirmation, an
				  occurrence that meets the clinical case definition.
Laboratory confirmation - Laboratory criteria for diagnosis
				  include isolation of M. tuberculosis from a clinical specimen; demonstration of
				  M. tuberculosis by other laboratory technique; or demonstration of acid-fast
				  bacilli in a clinical specimen when a culture has not been or cannot be
				  obtained.
Clinical case definition - A clinical case meets all the
				  following criteria: a positive TB screening test; other signs and symptoms
				  compatible with active TB disease, such as an abnormal, unstable (worsening or
				  improving) chest radiograph, or clinical evidence of current disease; treatment
				  with two or more anti-tuberculosis medications; and completed diagnostic
				  evaluation.
"Contact" means a person who has been exposed to M.
				  tuberculosis by sharing air space with a person with infectious TB.
"Department" means the Illinois Department of Public
				  Health.
"Directly Observed Therapy" or "DOT" means a process by which
				  a trained health care worker or other designated trained person watches the
				  patient swallow each dose of TB medication.
"Health Care Setting" means any relationship (physical or
				  organizational) in which a health care worker might share air space with a
				  person with active TB disease or in which a health care worker might be in
				  contact with clinical specimens.
"Health Care Worker" means a paid or unpaid person working in
				  a health care setting who has the potential for exposure to M. tuberculosis
				  through air space shared with persons with infectious TB disease, or contact
				  with clinical specimens.
"High-Risk Groups" means categories of people with an
				  increased probability of becoming infected with TB, or who, once infected, have
				  increased probability of progressing to active TB disease.
"Infectious" means that a person has, or is suspected of
				  having, active TB disease of the respiratory tract capable of producing
				  infection or disease in others as demonstrated by the presence of AFB in the
				  sputum or bronchial secretions or by chest radiograph and clinical
				  findings.
"Isolation" means the physical separation and confinement of
				  a person with suspected or confirmed active TB disease in a place and under
				  conditions that prevent the transmission of the infection.
"Latent TB Infection" or "LTBI" means the condition in which
				  organisms capable of causing disease (i.e., M. tuberculosis) enter the body and
				  elicit a response from the host's immune defenses. LTBI may or may not progress
				  to clinical disease.
"Local TB Control Authority" means the agency at the local
				  level recognized by the Department as having jurisdiction over the prevention
				  and control of tuberculosis. The local TB control authority may be an
				  autonomous TB board or a TB program within a local health department.
"Mantoux Tuberculin Skin Test" or "Mantoux Skin Test" means a
				  method of skin testing that is performed by injecting 0.1 mL of purified
				  protein derivative (PPD) tuberculin containing five tuberculin units into the
				  dermis of the forearm with a needle and syringe.
"Non-infectious" means a person previously determined to be
				  infectious who now meets all the following criteria:
has received a minimum of two weeks of standard multidrug
				  anti-tuberculosis treatment in accordance with Treatment of Tuberculosis,
				  incorporated by reference in Section
				  696.110(a);
has demonstrated clinical improvement in response to therapy;
				  and
has three consecutive negative AFB sputum smear results from
				  sputum collected in eight-hour or greater intervals, with at least one being an
				  early morning specimen.
"Serious Adverse Medication Reaction" means any reaction to a
				  medication used for the treatment of active TB or Latent TB Infection that
				  requires a treatment interruption or a change in the treatment regimen, or
				  results in significant or permanent damage or impairment, hospitalization or
				  death.
"Suspected Case" means a tentative diagnosis, while
				  diagnostic procedures are being completed, of active TB disease, whether or not
				  treatment has been started, or a person with an illness marked by signs,
				  symptoms and/or laboratory tests that may be indicative of tuberculosis.
"TB Screening Test" means a federal Food and Drug
				  Administration (FDA) approved screening test to detect TB infection. Examples
				  of screening tests include, but are not limited to, the Mantoux tuberculin skin
				  test and whole blood interferon-gamma release assays.