Dept of Immunology, Imperial College London, Chelsea & Westminster Hospital London, 369 Fulham Road, London, SW10 9NH, UK. aspinall@imperial.ac.uk.
The problems associated with the ageing immune system coupled with possible solutions were discussed recently at the British Society for Immunology Annual Congress in Harrogate in December 2004. The session "Ageing and the Immune System in vivo" dealt in details with the immune risk phenotype and the potential methods of reversing the problems of an ageing immune system. This is a commentary on that session.