Since the COVID-19 pandemic began, there have been numerous reports of GBS following SARS-CoV-2 infection. The exact relationship is still under investigation, but it is believed that the hyperinflammatory response triggered by the virus may contribute to the development of GBS. In some cases, GBS has been reported after COVID-19 vaccination, but this remains exceedingly rare compared to the overall benefits of vaccination.
A study published in 2023 highlighted the association of GBS and COVID. “The GBS symptoms began on average 19 days after the onset of COVID-19 infection. Regarding GBS, the main manifestations found included generalized weakness, reflex reduction, facial paresis/paralysis and hypoesthesia,” it said after examining 156 studies.