Uwe Beffert, B.Sc., Philippe Bertrand, Ph.D., Danielle Champagne, M.Sc., Serge Gauthier, M.D., F.R.C.P.(C.), Judes Poirier, Ph.D. Herpes Simplex Virus Type 1 in the Brain, Apolipoprotein E Genotype and Alzheimer’s Disease