My WebMD Sign In

Please enter email address

Enter your password

Keep me signed in on this computer

Show more Information

If you select "Keep me signed in on this computer", every time you visit WebMD.com you won't have to type your email address and password. This means that a cookie will stay on your computer even when you exit or close your browser which may reduce your levels of privacy and security. You should never select this option if you're using a publicly accessible computer, or if you're sharing a computer with others. Even if you select this option there are some features of our site that still require you to log in for privacy reasons.

Forget your password? Having trouble signing in?

Why should I
sign up for WebMD?

With a WebMD Account you can:

Track your way to weight loss success
Manage your family's vaccinations
Join the conversation

See more benefits Sign Up

Why WebMD?

My WebMD

Show Menu

Facebook Twitter Pinterest

WebMD Home

Hepatitis Health Center

Hepatitis Related Topics

Email a Friend

Print Article

Hepatitis Health Center

Tools & Resources

Font Size

Hepatitis B Viral DNA - Topic Overview

The hepatitis B virus contains DNA. If DNA from the hepatitis B virus is found in your blood sample, then your doctor knows that the virus is multiplying.

You are contagious when HBV DNA is present. The higher the level of HBV DNA, the more contagious you are.
If you have a long-term (chronic) HBV infection, the presence of high levels of viral DNA means that you are at increased risk for liver damage and may want to consider treatment with medicines.
Testing for the amount of HBV DNA (viral load) is an important way to monitor the effectiveness of treatment for chronic HBV infection.

WebMD Medical Reference from Healthwise

Last Updated: November 11, 2010

This information is not intended to replace the advice of a doctor. Healthwise disclaims any liability for the decisions you make based on this information.