Regarding the distribution of GBS electrophysiological variants, our analysis showed that COVID-19-associated GBS manifests prevalently with AIDP and, to a lesser extent, with AMSAN and AMAN, in line with classic GBS in Western countries [66, 85]. Conversely, the observation of positive anti-GD1b antibodies  in one COVID-19-related MFS patient and negative anti-ganglioside antibodies in other five cases appear in discordance with the high prevalence (≈ 90%) of anti-GQ1b antibodies among non-COVID-19 MFS cases [86], and may suggest different immune-mediated mechanisms. However, these results could not be generalized until a wider population would be tested.