ACKNOWLEDGEMENTS

These guidelines for investigating contacts of tuberculosis (TB) patients were prompted by requests from the managers of many national TB programmes. The document was prepared by Philip Hopewell, Elizabeth Fair and Cecil Miller at the University of California at San Francisco, USA, and the American Thoracic Society.
A steering committee was established by the World Health Organization (WHO) to identify the elements that should be included in the document, the questions to be addressed and the systematic reviews to be conducted. The steering committee comprised: Leopold Blanc, Angelito Bravo, Daniel Chemtob, Dennis Falzon, Malgosia Grzemska, Ernesto Jaramillo, Knut Lonnroth, Paul Nunn, Salah Ottmani, Delphine Sculier, and Mukund Uplekar from the WHO Stop TB Department, Geneva, Switzerland, Jacob Creswell and Sahu Suvanand from the Stop TB Partnership, Geneva, Switzerland, and Elizabeth Fair and Philip Hopewell from the American Thoracic Society.