1 Department of Neurology (LW, MM), Mater Misericordiae University Hospital, Dublin, Ireland; Department of Radiology (FD, EK), Mater Misericordiae University Hospital, Dublin, Ireland; Department of Stroke Medicine (GK, SM), Mater Misericordiae University Hospital, Dublin, Ireland; and Department of Infectious Diseases (GS), Mater Misericordiaae University Hospital, Dublin, Ireland.