M.E. is an infectious neurological disease and represents a major attack on the central nervous system (CNS) by the chronic effects of a viral infection. A significant number of the world’s leading M.E. experts believe that M.E., like poliomyelitis, is caused by an enterovirus. (This includes doctors such as A. Gilliam, A. Melvin Ramsay and Elizabeth Dowsett, John Richardson of Newcastle-upon-Tyne, W.H. Lyle, Elizabeth Bell of Ruckhill Hospital, James Mowbray of St Mary’s, Peter Behan and also the brilliant Byron Hyde of Canada.) The evidence which exists to support this theory is compelling.