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Hepatitis A Updated 3/2011

J. Scott Gaertner, MD
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BASICS

  • Description
  • Epidemiology
  • Risk Factors
  • General Prevention
  • Pathophysiology
  • Etiology
  • Associated Conditions

DIAGNOSIS

  • Signs and Symptoms
  • Tests
  • Differential Diagnosis

TREATMENT

  • Medication (Drugs)
  • Additional Treatment
  • Complementary and Alternative Medicine
  • Surgery
  • In-patient Considerations

Ongoing Care

  • Follow-Up Recommendations
  • Diet
  • Patient Education
  • Prognosis
  • Complications
The following is an excerpt....
BASICS
Description

Infection with the hepatitis A virus (HAV) primarily involving the liver

Epidemiology
ALERT: Pediatric Considerations
  • Disease is often milder or asymptomatic in pediatric population.
  • 70% of infections are asymptomatic in children <6 years of age.
  • Hepatitis A infection severity increases with age.
Incidence
  • In 2007 there were 2,979 HAV infections reported in the US.
  • Prior to release of HAV vaccine, there were 22,000–36,000 cases reported per year in the US (1)[B].
  • Estimated cases: 25,000 HAV infections in 2007 (lowest ever recorded in US)
  • 1.1/100,000 incidence in US
  • Predominant sex: Male = Female
Prevalence

Antibodies in 33% of US population

Risk Factors
  • Foreign travel to developing countries accounts for over 50% of cases in North ...

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