There is an ongoing debate as to whether SARS-CoV-2 can cause GBS, but an increasing number of patients; the temporal relation between onset of infection and onset of GBS; ruling out of alternative causes; and elevated cytokines, chemokines, and glial fibrillary acidic protein in the CSF argue in favour of a causal relation [70]. The gene discussed is GFAP; the disease is Guillain-Barre syndrome.