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 Hepatitis D, E, F, and G

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

Hepatitis D, E, F, and G: Lesser known (than hepatitis A, B, and C), the most significant of these seems to be type D, or the delta agent, which only causes disease in the presence of the hepatitis B virus.

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