Statement of the WHO Global Advisory Committee on Vaccine Safety (GACVS) COVID-19 subcommittee on reports of Guillain-Barré Syndrome (GBS) following adenovirus vector COVID-19 vaccines

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The COVID-19 subcommittee of the WHO Global Advisory Committee on Vaccine Safety (GACVS) met virtually to discuss rare reports of Guillain-Barré Syndrome (GBS) following vaccination with the Janssen and AstraZeneca COVID-19 vaccines. Both vaccines use an adenovirus platform as their backbone.