Fig. 1. Reported incidence rates of GBS in HIC and LMIC.

According to World Bank definitions, low-income and middle-income countries (LMIC) are those with an annual gross national income per capita of <US$3,995, whereas upper middle-income and high-income countries combined (HIC in this Review) have an annual gross national income per capita of ≥US$3,995 (ref.¹³). Numbers on a white background represent the incidence rate of all cases of Guillain–Barré syndrome (GBS); numbers on a blue background represent the incidence rates of paediatric cases of GBS only. *Curaçao, **French Polynesia.