The SWITCH study, a landmark study published in 2012, analyzed the actual cost of a TB surveillance program using both the TST and the T-SPOT.TB test. The study, conducted at Johns Hopkins Health Systems, exhaustively exposes the “false economics” of the skin test, demonstrating that the cost of a TST program ranges from $53 to $72 per healthcare worker when taking into account all the components of a TST screening program.1

Our Cost Comparison Calculator can help you discover the true cost of your current TB screening program, and we’ll show you what 1000 institutions have already seen; how cost-effective EASY TB blood testing can be using the T-SPOT.TB test:

To request a reprint of the SWITCH study or the T-SPOT.TB test, fill out the form to the right or call 1-877-20 TSPOT today.


1Wrighton-Smith P et al., Screening Healthcare Workers with Interferon-γ Release Assay Versus Tuberculin Skin Test: Impact on Costs and Adherence to Testing (the SWITCH Study). Journal of Occupational and Environmental Medicine 2012: 806-815.