[1] Brigham & Womens Hosp, Dept Neurol, Div Neurol Infect, Boston, MA 02115 USA
[2] Harvard Univ, Sch Med, Boston, MA USA
[3] Johns Hopkins Sch Med, Dept Neurol, Baltimore, MD USA
[4] Johns Hopkins Univ Hosp, Microbiol Lab, Baltimore, MD 21287 USA
[5] Johns Hopkins Sch Med, Dept Pathol, Div Med Microbiol, Baltimore, MD USA
[6] Johns Hopkins Bloomberg Sch Publ Hlth, Dept Epidemiol, Baltimore, MD USA
[7] Associates Cape Cod Inc, Falmouth, MA USA
[8] Johns Hopkins Sch Med, Dept Med, Div Infect Dis, Baltimore, MD USA
[9] Johns Hopkins Sch Med, Dept Oncol, Div Infect Dis, Baltimore, MD USA
[10] Indiana Univ, Indianapolis, IN 46204 USA