1 Department of Neurology (A.C., P.A.), Department of Infectious Diseases (A.S.-P., J.A., N.N., A.S.), Centro Hospitalar São João, Porto, Portugal; Department of Neuroscience and Mental Health (A.C., P.A.), Faculty of Medicine of University of Porto, Portugal; Nephrology and Infectious Diseases R&D Group (A.S.-P., J.A., N.N., A.S.), Health Investigation and Innovation Institute (I3S), University of Porto, Portugal; and Neuroimmunology Program (E.M.-H.), Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain.