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Hepatitis A is a liver disease caused by the hepatitis A virus, which is transmitted primarily by the fecal-oral route, that is when an uninfected person contacts or ingests food or water that has been contaminated with the virus
People with hepatitis A may not develop any symptoms, while some people may have mild fever, fatigue, muscle pain, headache, loss of appetite, nausea, vomiting, diarrhea, upper abdominal discomfort, and jaundice.
- The complete course of hepatitis A vaccination requires two injections, 6 to 18 months apart. One month after receiving the first dose of the hepatitis A vaccine, about 95% of people would produce protective antibody levels against infection.
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