key: cord-0973785-m18ttqcw authors: Mungmunpuntipantip, Rujittika; Wiwanitkit, Viroj title: Guillain-Barre syndrome, Facial Diplegia and Pfizer COVID-19 vaccine date: 2021-10-29 journal: J Emerg Med DOI: 10.1016/j.jemermed.2021.10.038 sha: b52a544b68397e862937f4a673edf2f40b37aa94 doc_id: 973785 cord_uid: m18ttqcw nan ." GS following vaccination is a possible COVID-19 vaccine adverse event. It is necessary to exclude other possible causes by serological examination for other infections. Indeed, another possible cause of the problem is hyperviscosity following vaccination. After COVID-19 vaccination, hyperviscosity might be induced [2] and the hyperviscosity is a possible cause of a temporary manifestation as GBS [3] and diplegia [4] . Guillain-Barre Syndrome Presenting as Facial Diplegia after COVID-19 Vaccination: A Case Report Expected Viscosity After COVID-19 Vaccination, Hyperviscosity and Previous COVID-19 Safety of Therapeutic Plasma Exchange for the Treatment of Guillain-Barre Syndrome in Polycythemia Vera Neonatal hyperviscosity. II. Effect of partial plasma exchange transfusion None