<prompt> GBS in a child treatmentIVIGVentilationPlasmapharesisAll of above  <response>: Guillain-Barre syndrome Autoimmune disorder,Leads to demyelination of nerve.HO preceding viral infection :Infectious mononucleosis EB Virus: Measles, mumps, ECHO, coxsackie.Campylobacter: Strongly associated with severe form acute motor axonal neuropathy AMAN. Clinical featureThe symmetrical weakness of LMN type Ascending type,Subjective sensory involvement.Facial nerve palsy seen in 3 4th of cases.Involvement of autonomic nervous systems, urinary retention, hypo or hypertension. DiagnosisCSF - Albumin cytological dissociation Protein is elevated in 80 of cases but cell count normal. TreatmentSelf-limited in the majority of cases, Intravenous immunoglobin shows a good response, Plasma pheresis - Removal of autoantibodies,Assisted ventilation - If the patient had respiratory muscle paralysis,Physiotherapy. 