Guillain-Barré syndrome is commonly preceded by which type of illness?

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Multiple Choice

Guillain-Barré syndrome is commonly preceded by which type of illness?

Guillain-Barré syndrome is often triggered by a recent infection, reflecting an autoimmune attack on the peripheral nerves that occurs after an immune response to an illness. The most common preceding events are febrile illnesses, frequently viral or gastroenteritis. This prior infection sets off molecular mimicry, where antibodies or immune cells mistakenly target components of the myelin or axons in peripheral nerves, leading to the acute weakness and areflexia seen in GBS. While not every patient reports a preceding illness, and other triggers like certain bacterial infections exist, the typical pattern most closely matches a recent febrile viral or GI illness.

Guillain-Barré syndrome is often triggered by a recent infection, reflecting an autoimmune attack on the peripheral nerves that occurs after an immune response to an illness. The most common preceding events are febrile illnesses, frequently viral or gastroenteritis. This prior infection sets off molecular mimicry, where antibodies or immune cells mistakenly target components of the myelin or axons in peripheral nerves, leading to the acute weakness and areflexia seen in GBS. While not every patient reports a preceding illness, and other triggers like certain bacterial infections exist, the typical pattern most closely matches a recent febrile viral or GI illness.

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