Lascano et al. [31] Switzerland 52 F 15 days after (no resolution of pneumonia) Back pain, diarrhea, rapidly progressive tetraparesis, distal paraesthesia Worsening of proximal weakness (tetraplegia), generalized areflexia, ataxia Constipation, abdominal pain Yes 4 days after symptoms onset Dry cough, dysgeusia, cacosmia None Clinical + CSF + electrophysiology 1 Classic sensorimotor