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Monday, September 26, 2011

Viral Hepatitis A

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Hepatitis A

How is hepatitis A spread?

Hepatitis A is spread primarily through food or water contaminated by feces from an infected person. Rarely, it spreads through contact with infected blood.
Causes
The hepatitis A virus is found in the stools (feces) of people with hepatitis A. It is transmitted when a person puts something in his or her mouth that has been contaminated with the feces of an affected person. This is referred to as fecal-oral transmission.
Symptoms
Symptoms of hepatitis A usually develop between 2 and 6 weeks after infection. The symptoms are usually not too severe and go away on their own, over time. The most common symptoms are as follows:

  • Nausea
  • Vomiting
  • Diarrhea, especially in children
  • Low-grade fever
  • Loss of appetite
  • Rash
  • Tiredness, fatigue
  • Jaundice - A yellow discoloration of the skin and the whites of the eyes
  • Urine is dark brownish in color, like cola or strong tea.
  • Pain in area of liver - On the right side of the abdomen, just under the rib cage



Who is at risk for hepatitis A?

People most likely to get hepatitis A are
  • international travelers, particularly those traveling to developing countries
  • people who live with or have sex with an infected person
  • people living in areas where children are not routinely vaccinated against hepatitis A, where outbreaks are more likely
  • day care children and employees, during outbreaks
  • men who have sex with men
  • users of illicit drugs

How can hepatitis A be prevented?

The hepatitis A vaccine offers immunity to adults and children older than age 1. The Centers for Disease Control and Prevention recommends routine hepatitis A vaccination for children aged 12 to 23 months and for adults who are at high risk for infection. Treatment with immune globulin can provide short-term immunity to hepatitis A when given before exposure or within 2 weeks of exposure to the virus. Avoiding tap water when traveling internationally and practicing good hygiene and sanitation also help prevent hepatitis A.

What is the treatment for hepatitis A?

Hepatitis A usually resolves on its own over several weeks

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