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The risk for symptomatic infection is directly related to age, with more than 80% of adults having symptoms compatible with acute viral hepatitis and the majority of children having either asymptomatic or unrecognized infections. [16] Symptoms usually last less than 2 months, although some people can be ill for as long as 6 months: [17] Fatigue ...
Hepatitis D is a defective virus that requires hepatitis B to replicate and is only found with hepatitis B co-infection. [17] In adults, hepatitis B infection is most commonly self-limiting, with less than 5% progressing to chronic state, and 20 to 30% of those chronically infected developing cirrhosis or liver cancer. [30]
Liver tumor types by relative incidence in adults in the United States (liver cancers in dark red color). [14] The most frequent liver cancer, accounting for approximately 75% of all primary liver cancers, is hepatocellular carcinoma (HCC). [15] HCC is a cancer formed by liver cells, known as hepatocytes, that become malignant. In terms of ...
Viral hepatitis is liver inflammation due to a viral infection. [1] [2] It may present in acute form as a recent infection with relatively rapid onset, or in chronic form, typically progressing from a long-lasting asymptomatic condition up to a decompensated hepatic disease and hepatocellular carcinoma (HCC). [3]
The time between hepatitis B infection and development into HCC can be years, even decades, but from diagnosis of HCC to death, the average survival period is only 5.9 months according to one Chinese study during the 1970-80s, or 3 months (median survival time) in sub-Saharan Africa according to Manson's textbook of tropical diseases. HCC is ...
The Chi-Chi's Hepatitis A outbreak served as a wake-up call for the food industry and led to the implementation of new food laws, which have helped prevent similar outbreaks from occurring in the ...
National Institute of Diabetes and Digestive and Kidney Diseases: “Symptoms and Causes of Autoimmune Hepatitis.” Immunization Action Coalition : “Hepatitis A, B, and C: Learn the Differences.”
Hepatitis virus-associated hepatocarcinogenesis is a serious health concern. [31] Liver cancer in the United States is primarily due to three main factors: hepatitis C virus (HCV) (22%), hepatitis B virus (HBV) (12%) and alcohol use (47%). [32] In 2017 there will be about 40,710 new cases of liver cancer in the United States. [33]