Manganotti et al. [33] RT-PCR IL-1: 0.5 pg/ml (< 0.001 pg/ml), IL-6: 9.8 pg/ml (0.8–6.4 pg/ml), IL-8: 55.0 pg/ml (6.7–16.2 pg/ml), TNF- α: 16.0 pg/ml (7.8–12.2 pg/ml) Negative anti-ganglioside antibodies, negative HIV, HBV, HCV negative serological tests for autoimmune disorders Normal total protein (40 mg/dl), leucocytes: 1 cell/mm3, negative SARS-CoV-2 PCR Mixed demyelinating and axonal   EMG subtype unknown Brain: no pathological findings IVIG 400 mg/kg/day (5 days) Hydroxychloroquine, lopinavir/ritonavir, methylprednisolone + mechanical invasive ventilation Improvement of motor symptoms