title: Booster effect of two-step tuberculin skin testing among hospital employees from areas with a high prevalence of tuberculosis.
abstract: During a baseline survey of TST, 236 nurses underwent a two-step TST. Overall, 29 (12%) showed boosting. All age groups showed boosting; the rate was 9.7% in those younger than 35 years. Subjects older than 45 years were more likely to have a booster effect than younger individuals (29% vs 10.1%).
authors.affiliation: College of Medicine, King Saud University, Riyadh, Saudi Arabia.
authors.forename: Abdulrahman M
authors.initials: AM
authors.lastname: Al Mazrou
mesh_terms: D000328:Adult; D000367:Age Factors; D003428:Cross Infection / Q000517:prevention & control; D005188:False Negative Reactions; D005260:Female; D006801:Humans; D007117:Immunization, Secondary; D008297:Male; D008875:Middle Aged; D009741:Nursing Staff, Hospital; D014374:Tuberculin Test; D014397:Tuberculosis, Pulmonary / Q000175:diagnosis* / Q000635:transmission*