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Author Notes:

Jeffrey M. Collins, Division of Infectious Diseases, Department of Medicine, 49 Jesse Hill Jr Drive, Atlanta, GA 30303 (jmcoll4@emory.edu).

The authors do not have a commercial or other association that might pose a conflict of interest.


Research Funding:

This study was supported by grants from the National Institutes of Health (grant no. T32 AI074492 to J.M.C.; grant no. K23 AI103044 to R.R.K.; grant no. UL1 TR002378 to the Georgia Clinical and Translational Science Alliance) and the Emory Medical Care Foundation.


  • Science & Technology
  • Life Sciences & Biomedicine
  • Public, Environmental & Occupational Health
  • Infectious Diseases

False-Positive Tuberculin Skin Test Results Among Low-Risk Healthcare Workers Following Implementation of Fifty-Dose Vials of Purified Protein Derivative


Journal Title:

Infection Control and Hospital Epidemiology


Volume 39, Number 6


, Pages 750-752

Type of Work:

Article | Post-print: After Peer Review


Following large declines in tuberculosis transmission the United States, large-scale screening programs targeting low-risk healthcare workers are increasingly a source of false-positive results. We report a large cluster of presumed false-positive tuberculin skin test results in healthcare workers following a change to 50-dose vials of Tubersol tuberculin.

Copyright information:

© 2018 by The Society for Healthcare Epidemiology of America. All rights reserved.

This is an Open Access work distributed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (http://creativecommons.org/licenses/by-nc-nd/4.0/).

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