<prompt> Hepatitis virus that causes chronic liver disease is?Hepatitis AHepatitis BHepatitis CHepatitis D  <response>: HCV also is a major cause of liver disease. The worldwide carrier rate is estimated at 175 million persons a 3 prevalence rate, ranging widely from 0.1 to 12, depending on the country. Persistent chronic infection exists in 3 to 4 million persons in the United States ROBBINS TEXT BOOK OF PATHOLOGY 9TH EDITION PG NO.618 