Educational Content: This article is for informational purposes only and does not constitute medical advice. Always consult a healthcare provider for diagnosis and treatment.

Definition of Parainfectious

Medically reviewed by Dr. Otari Nergadze, Neurosurgeon | Updated: January 2026

Parainfectious: Occurring at the time of and in association with an acute infection or an episode of infection.

For example, transverse myelitis (a disorder of the spinal cord) can occur parainfectiously in association with a number of viral and bacterial illnesses.