Hepatitis C virus (HCV) causes both acute and chronic infection. Acute HCV infection is usually asymptomatic, and is only very rarely associated with life-threatening disease. The incubation period for hepatitis C is 2 weeks to 6 months. Following initial infection, approximately 80% of people do not exhibit any symptoms. Those who are acutely symptomatic may exhibit fever, fatigue, decreased appetite, nausea, vomiting, abdominal pain.Causes Hepatitis C caused due to contact with contaminated blood or needles used to inject illegal drugs or draw tattoos.
HCV infection is diagnosed in 2 steps: Screening for anti-HCV antibodies with a serologial test identifies people who have been infected with the virus. If the test is positive for anti-HCV antibodies, a nucleic acid test for HCV RNA is needed to confirm chronic HCV infection.Hepatitis C does not always require treatment as the immune response in some people will clear the infection, and some people with chronic infection do not develop liver damage. When treatment is necessary, the goal of hepatitis C treatment is cure.
Each of the hepatitis viruses causes similar liver damage. The inflammatory process is activated throughout the whole liver, and hepatocytes are destroyed by cytotoxic cytokines and natural killer cells, both parts of the inflammatory process. Cellular necrosis takes place. If inflammation affects the periportal areas, cholestasis, or the interruption of the flow of bile takes place.
statistics: hepatitis B cases occurred in 2013 is estimated to be 19,764 (Data for 2013 were unavailable for the District of Columbia, Rhode Island, and Wyoming).The number of acute cases of hepatitis B decreased by 9.5% during 2009–2013, from 3,371 reported cases to 3,050 reported cases Of the 48 states that reported acute hepatitis B cases in 2013, 31 states had rates below the national rate of 1.0 per 100,000 populations. Rates of acute hepatitis B in 2013 ranged from no cases reported in North Dakota to 10.5 cases per 100,000 populations in West Virginia.