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The time between infection and symptoms, in those who develop them, is two–six weeks, with an average of 28 days. [2] 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.
Severe side effects are very rare. [2] Pain at the site of injection occurs in about 15% of children and half of adults. [2] Most hepatitis A vaccines contain inactivated virus while a few contain weakened virus. [2] The ones with weakened virus are not recommended during pregnancy or in those with poor immune function. [2]
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]
Acute Hepatitis B is a short-term illness that occurs within 6 months of exposure, Chronic Hepatitis B is long term and happens when the virus remains in the body. The younger the child is, the greater their chance of developing a chronic infection and this risk goes down as the child gets older.
CENTER TWP. ― A Hepatitis A outbreak traced to a Beaver County restaurant 20 years ago may have led to many of the national food safety guidelines implemented in the last several years.
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).
Hepatitis A virus causes self-limited acute hepatitis. [6] Hepatitis B and C have similar symptoms as hepatitis A but onsets later when the stage reaches chronic liver cirrhosis. [6] [14] Hepatitis D virus, as a satellite virus, can only infect hepatitis B patients thus their complications are similar, only more aggressive. [15]
Post-acute infection syndromes (PAISs) or post-infectious syndromes are medical conditions characterized by symptoms attributed to a prior infection. While it is commonly assumed that people either recover or die from infections, long-term symptoms—or sequelae—are a possible outcome as well. [1]