After hepatitis A immunization, what serology would be found if the patient developed acute hepatitis A with failed immunization?
From the CDC website: http://www.cdc.gov/nip/manual/lab/lab.htm Hepatitis A (see Chapter 3) The diagnosis of acute hepatitis due to hepatitis A virus (HAV) is confirmed during the acute or early convalescent phase of infection by the presence of IgM anti-HAV in serum. Serum for IgM anti-HAV testing should be drawn as soon as possible after onset of symptoms, as IgM anti-HAV generally disappears within 6 months after onset of symptoms. During the convalescent phase of infection, IgG anti-HAV appears, and remains in serum for the lifetime of the person conferring enduring protection against disease. The antibody test for total anti-HAV measures both IgG anti-HAV and IgM anti-HAV. Persons who are total anti-HAV positive and IgM anti-HAV negative have serologic markers indicating immunity consistent with either past infection or vaccination.
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