Ebrahimzadeh et al. [15] RT-PCR + chest CT Slightly elevated CRP (34 mg/L), normal serum protein immunoelectrophoresis Negative anti-GQ1b antibodies, negative screening for Campylobacter jejuni, HIV, EBV, CMV, influenza virus (type A and B), HCV, non-reactive VDRL NA Demyelinating AIDP NA IVIG NA Improvement of muscle strength in all extremities after 14 days