The delta antigen was first identified in the nucleus of hepatocytes infected with hepatitis B virus (HBV). Hepatitis D is caused by the hepatitis delta virus (HDV), a defective RNA virus that can only cause hepatitis in individuals who are infected with HBV.lobally, hepatitis B virus (HBV) infection is the most common form of chronic hepatitis around the world. Chronic carriers can continue to transmit the disease for many years before becoming symptomatic. Infection occurs very often in early childhood when it is asymptomatic and then leads to the chronic carrier state.
Durham, North Carolina. Durham is a city in the U.S. state of North Carolina. It is the county seat of Durham County, though portions also extend into Wake County in the east and Orange County in the west. The U.S. Census Bureau estimated the city's population to be 251,893 as of July 1, 2014.
Orange County is a county located in the U.S. state of North Carolina. As of the 2010 census, the population was 133,801. Its county seat is Hillsborough. Orange County is included in the DurhamâChapel Hill, NC Metropolitan Statistical Area, which is also included in the RaleighâDurhamâChapel Hill, NC Combined Statistical Area, which had a 2012 estimated population of 1,998,808.