Volume 8: Variant CJD
4. Work of the CJD Surveillance Unit
Introduction

4.1 This chapter describes the work of the CJDSU from its establishment in 1990 to the announcement of a possible link between BSE and a new variant of CJD on 20 March 1996. The studies conducted by the CJDSU are described below, with attention being paid to the development of the questionnaire used to obtain clinical and epidemiological information, along with the results obtained from these studies. The work which led to the identification of a new variant of CJD is described in detail in the next chapter.