skin test conversion

skin test conversion

A change in skin test reaction status—usually understood to mean a change in PPD reactivity—from negative to positive between screening intervals.

skin test conversion

Immunology A change in skin test reaction status–often PPD reactivity–from negative to positive between screening intervals. See Anergy, PPD, Seroconversion, Tuberculosis.
References in periodicals archive ?
Association between epidemiologic and microbiologic variables and tuberculin skin test conversion among children exposed to index tuberculosis patients, Houston, Texas, USA, 2007-2017 Tuberculin skin test conversion * Converted, no.
A tuberculin skin test conversion was seen in 8 (9.4%) patients, being more frequent in men than in women (62.5% vs 37.5%; p=0.009) and in those with longer disease duration (mean 226[+ or -]109 months vs mean 130[+ or -]105 months [p=0.017]).
Post.exposure rate of tuberculosis infection among health care workers measured with tuberculin skin test conversion after unprotected exposure to patients with pulmonary tuberculosis: 6.year experience in an .talian teaching hospital.
Tuberculin skin test conversion and primary progressive tuberculosis disease in the first 5 years of life: A birth cohort study from Cape Town, South Africa.
Latent TB incidence among SA medical students was measured by tuberculin skin test conversion at 23 cases/100 person-years.
Shulman, "Risk of house staff tuberculin skin test conversion in an area with a high incidence of tuberculosis," Clinical Infectious Diseases, vol.
Tuberculin Skin Test conversion and reactivity rates among adults with and without Human Immunodeficiency Virus in urban settings in Ethiopia.
([paragraph]) Tuberculin skin test conversion is defined by a change from a negative to a positive result and a [greater than or equal to] 10 mm increase in induration, within a 2-year interval (2).
In the past, skin test conversion rates have suggested an annual infection rate of [approximately equal to] 3,000/100,000 (10).
Finally, staffTRAK-TB is used by tuberculosis control programs to monitor skin test conversion rates.
Assessing tuberculin skin test conversion after exposure to tuberculosis on airplanes [Abstract].
Tuberculin skin test conversion in hospital employees vaccinated with bacille Calmette-Guerin: recent Mycobacterium tuberculosis infection or booster effect?