Alberti et al. [6] Italy 71 M 4 days after (no resolution of pneumonia) LL paraesthesia Ascendant weakness, flaccid tetraparesis, hypoesthesia and paraesthesia in the 4 limbs, generalized areflexia, dyspnea None Yes (concurrent pneumonia) 4 days after symptoms onset (24 h after the admission) Fever (low grade), dyspnea, pneumonia Hypertension, treated abdominal aortic aneurysm, treated lung cancer Clinical + CSF + electrophysiology 1 Classic sensorimotor