Department of Neurology, University of Colorado, Health Sciences Center, 4200 East Ninth Avenue, Box B-182, Denver, Colorado 80262, USA; Department of Microbiology, University of Colorado, Health Sciences Center, 4200 East Ninth Avenue, Box B-182, Denver, Colorado 80262, USA; and University Department of Neurology, Institute of Neurological Sciences, Southern General Hospital NHS Trust, Glasgow...
