Journal article
Host immune response to hepatitis A virus
The Journal of infectious diseases, Vol.171 Suppl 1(Supplement-1), pp.S9-S14
03/1995
DOI: 10.1093/infdis/171.Supplement_1.S9
PMID: 7876654
Abstract
Hepatitis A virus (HAV) is transmitted by the fecal-oral route. The virus crosses through the gastrointestinal tract by an uncharacterized mechanism and travels to the liver, where it replicates in hepatocytes. It is released into the bloodstream and is simultaneously present in the bile and shed in the feces. Fecal shedding and viremia are maximal at the onset of liver function abnormalities and terminate about the time humoral immunity is detected, approximately 28 days after exposure. IgM, IgA, and IgG anti-HAV antibodies are usually present at onset of symptoms. Although the IgM response becomes undetectable usually within 6 months, IgG responses frequently persist for life, providing protection against reinfection. Pre- and postexposure immunization with pooled human serum immunoglobulin (ISG) is approximately 90% effective in preventing hepatitis A. Recipients of ISG have very low levels of detectable anti-HAV antibodies, and vaccines that elicit anti-HAV levels comparable with those produced by ISG should confer similar protection.
Details
- Title: Subtitle
- Host immune response to hepatitis A virus
- Creators
- J T Stapleton - Iowa City VA Medical Center
- Resource Type
- Journal article
- Publication Details
- The Journal of infectious diseases, Vol.171 Suppl 1(Supplement-1), pp.S9-S14
- DOI
- 10.1093/infdis/171.Supplement_1.S9
- PMID
- 7876654
- ISSN
- 0022-1899
- eISSN
- 1537-6613
- Language
- English
- Date published
- 03/1995
- Academic Unit
- Microbiology and Immunology; Infectious Diseases; Internal Medicine
- Record Identifier
- 9984297314502771
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