Answer: Hepatitis.
Hepatitis is not caused by any bacteria. The term 'hepatitis' itself means inflammation of the liver, which can be caused by several infections, viruses or even some medications.
It has various types of viruses, which include hepatitis A, B, C, etc. All these types differ in their structure and how they react and spread in an individual's body.
Hepatitis C is the most common virus among all its types which is transmitted through contaminated blood transfusions and sexual contact.