Infection with the hepatitis D virus (HDV), or delta agent,
occurs only in people who are already infected with the
hepatitis B virus (HBV).
HDV infection may make HBV infection more
In people who have long-term (chronic) HBV infection,
HDV infection can make liver disease worse. Or it can cause a
person who did not have symptoms before to develop liver problems more
Some people who have hepatitis D also have severe
Vaccination(What is a PDF document?)
against hepatitis B will also prevent hepatitis D virus infection.
Hepatitis D virus infection is rare in the United
In this article
This information is produced and provided by the National
Institute (NCI). The information in this topic may have changed since it was written. For the most current information, contact the National
Institute via the Internet web site at http://
.gov or call 1-800-4-CANCER.
WebMD Medical Reference from Healthwise
November 14, 2014
This information is not intended to replace the advice of a doctor.
Healthwise disclaims any liability for the decisions you make based on this