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Tuberculin testing in a tertiary hospital: product variability
J W Shands1, D Boeff, L Fauerbach
1University of Florida College of Medicine, Gainesville 32610.
Infection Control and Hospital Epidemiology
|December 1, 1994
Abstract:
Nine percent of 2,721 hospital employees, previously tuberculin negative, were PPD positive when tested with 5 TU of PPD (Aplisol, Parke-Davis). Seventy percent of the positive reactions were found to be erroneous on retesting with Tubersol (Connaught). The excessive potency of Aplisol led to excessive expenditures of time and money investigating a nonexistent outbreak.