A disorder in which the body’s immune system attacks part of the peripheral nervous system.
Symptoms include varying degrees of weakness or tingling sensations in the legs.
In severe cases, a person can be paralysed, making the condition life-threatening.
GBS can affect anybody and both sexes are equally prone to the disorder.
GBS is very rare, afflicting only one or two people in every 100,000.
No one knows why the non-contagious condition strikes some people and not others.
GBS is named after the French physicians Georges Guillain and Jean Alexandre Barre, who described it in 1916.
Source: National Institute of Neurological Disorders and Stroke website