Trademarks and Disclaimers

Registered Trademarks:



QuantiFERON®-TB Gold (QFT®) is approved by the FDA as an in vitro diagnostic aid for detection of Mycobacterium tuberculosis infection. It uses a peptide  cocktail simulating ESAT-6, CFP-10, and TB7.7(p4) proteins to stimulate cells in heparinized whole blood. Detection of IFN-γ by ELISA is used to identify in vitro responses to these peptide antigens that are associated with M. tuberculosis infection. QFT is an indirect test for M. tuberculosis infection (including disease) and is intended for use in conjunction with risk assessment, radiography, and other medical and diagnostic evaluations. Up-to-date licensing information and product-specific disclaimers can be found at


Limited License Agreement for QuantiFERON products:

Use of this product signifies the agreement of any purchaser or user of the product to the following terms:

  1. The product may be used solely in accordance with the protocols provided with the product and for use with components contained in the kit only. QIAGEN grants no license under any of its intellectual property to use or incorporate the enclosed components of this kit with any components not included within this kit except as described in the protocols provided with the product.
  2. Other than expressly stated licenses, QIAGEN makes no warranty that this kit and/or its use(s) do not infringe the rights of third-parties.
  3. This kit and its components are licensed for one-time use and may not be reused, refurbished, or resold.
  4. QIAGEN specifically disclaims any other licenses, expressed or implied other than those expressly stated.
  5. The purchaser and user of the kit agree not to take or permit anyone else to take any steps that could lead to or facilitate any acts prohibited above. QIAGEN may enforce the prohibitions of this Limited License Agreement in any Court, and shall recover all its investigative and Court costs, including attorney fees, in any action to enforce this Limited License Agreement or any of its intellectual property rights relating to the kit and/or its components.

For updated license terms, see

© 2014 QIAGEN