Case presentation: B,F,D, 6 years, female, previously healthy, initiated SARSCov2 symptoms with infection, fever, asthenia and recurrent vomiting, signals of extrapyramidal release, ataxia, dysarthria paraplegia. These evolved to metabolic acidosis, flaccid quadriplegia hospitalization at intensive care unit (ICU). When investigating, serology's CSF no alteration. Electrophysiological studies w...