|Hepatitis is a viral disease which causes inflammation of lungs and can be characterized by the occurrence of inflammatory cells in the organ, often leads to jaundice, poor appetite and malaise. There are five types of Hepatitis viruses, type A, B, C, D and it can be acute or chronic. It shows no symptoms to liver damage, liver failure, or even liver cancer in some cases. The impact factor of journal provides quantitative assessment tool for grading, evaluating, sorting and comparing journals of similar kind. It reflects the average number of citations to recent articles published in science and social science journals in a particular year or period, and is frequently used as a proxy for the relative importance of a journal within its field. It is first devised by Eugene Garfield, the founder of the Institute for Scientific Information. The impact factor of a journal is evaluated by dividing the number of current year citations to the source items published in that journal during the previous two years.