Tuberculin testing in a tertiary hospital: product variability.
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.
Shands
J W
JW
University of Florida College of Medicine, Gainesville 32610.
Boeff
D
D
Fauerbach
L
L
Gutekunst
R R
RR
D005188:False Negative Reactions; D005431:Florida; D006801:Humans; D010564:Personnel, Hospital; D015203:Reproducibility of Results; D014373:Tuberculin / Q000276:immunology*; D014374:Tuberculin Test / Q000379:methods / Q000706:statistics & numerical data*
D014373:Tuberculin