“Hepatitis D and E typically have abrupt onset of fever, nausea, and abdominal pain followed by jaundice. Hepatitis D may progress to chronic hepatitis.  Hepatitis D  is known as “delta hepatitis,” is a liver infection caused by the Hepatitis D virus (HDV). Hepatitis D is uncommon in the United States. Hepatitis D only occurs among people who are infected with the Hepatitis B virus (BHV) because HDV is an incomplete virus that requires the helper function of HBV to replicate. HDV. Hepatitis E is a liver infection caused by the Hepatitis E virus (HEV). Hepatitis E is a self-limited disease that does not result in chronic infection. While rare in the United States, Hepatitis E is common in many parts of the world. It is transmitted from ingestion of fecal matter, even in microscopic amounts, and is usually associated with contaminated water supply in countries with poor sanitation. There is currently no FDA-approved vaccine for Hepatitis E. ”

Washington State Dept of Health