Study of Progressive Intellectual & Neurological Deterioration (PIND)
As of 31st December 2018, after nearly 22 years of surveillance, 4467 patients with suspected PIND had been reported and the Expert Group had discussed 2919 of these. There have been six cases of vCJD: four definite and two probable. Three were reported in 1999, one in 2000 and two in mid-2001. The youngest UK case of vCJD identified to date was aged 12 at onset. A total of 1945 cases had a confirmed underlying cause other than vCJD, being categorised into over 190 known neurodegenerative diseases.