And if you’re pregnant, you can pass it on to your newborn. Viral hepatitis is an inflammation of your liver that's caused by a virus. The most common ones in the U.S. are hep A, B, and C.

Molecular diagnosis of HAV along with anti-HAV IgG avidity measurement are helpful in case of positive IgM where laboratory evidence of acute hepatitis is absent and there is no epidemiologic link ...