Mozhdehipanah et al. [35] RT-PCR (negative chest CT) Normal WBC, CRP and ESR NA Increased total protein (139 mg/dL), normal cell count, negative CSF HSV serology and gram stain and culture Demyelinating AIDP NA Plasma exchange (5 cycles) NA Significant improvement of muscle weakness after 3 weeks, persistence of mild bifacial paresis