Test Findings

Hepatitis A Serology



  • Most hepatitis A assays measure both IgM and IgG levels.
  • Hepatitis A IgM is detectable at the time of symptom onset, after an incubation period of 14-28 days.
  • Hepatitis A IgG develops later and persists for a long period of time, and its presence is indicative of vaccination or past infection.
Want more info like this?
  • Your electronic clinical medicine handbook
  • Guides to help pass your exams
  • Tools every medical student needs
  • Quick diagrams to have the answers, fast
  • Quizzes to test your knowledge