Increase in tuberculin skin test converters among health care workers after a change from Tubersol to Aplisol.

BACKGROUND Comparability of the 2 commercially available tuberculin skin testing (TST) preparations, Aplisol (Parkdale Pharmaceuticals, Inc, Rochester, MI) and Tubersol (Aventis Pasteur, Inc, Swiftwater, PA), remains uncertain, particularly in groups that undergo repeated testing, such as health care workers. METHODS Data from the annual tuberculosis… CONTINUE READING