 Hi. Chronic hepatitis commonly caused by hepatitis B, C and D viruses. Of this, hepatitis B is very common in our country and commonly spread by the transversal root that is from infected mother to baby. The other root of transmission are the sexual root, infected needles, tattoos, blood products, sharing needles and razors. These viruses can lead to chronic liver failure and also to liver cancers. Hepatitis D has commonly effect only in patients already infected with hepatitis B.