1. and many uncharted regions. Systematic updating of these figures shows that the absolute number of cases identified in different parts of the world has risen steadily since the 1950s.57 Rather than catalogue all the surveys (now running to many hundreds) or describe the laborious evolution of the ideas on causation which flow from them, figs 1-4 depict surveys for the regional prevalences of multiple sclerosis in 1997 in Europe, the United Kingdom, North America and Canada, and Australasia: there is a relative paucity of information on incidence; individual sources of information are not cited; nor are 95% confidence intervals (95% CIs);Shetland ° 287 Orkney Asia, South America
2. Multiple sclerosis in Europe: an epidemiological update;Lauer, K.; Firnhaber, W.
3. Epidemiologic evidence for multiple sclerosis as an infection;Kurtzke, J.F.;Clin Microbiol Rev,1993
4. Surveying multiple sclerosis in the United Kingdom. _7 Neurol;Robertson, N.P.; Compston, D.A.S.;Neurosurg Psychiatry,1995
5. Descriptive epidemiology of multiple sclerosis in Europe in the 1980s: a critical overview;Rosati, G.;Ann Neurol,1994