الفهرس 
INTRODUCTIONOnly 14 pages are availabe for public view
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Abstract
Virus A hepatitis is consid~red one of major infectious
diseases in Egypt. It is easil_y transmitted
by feacal orill route and infection is common where
standards of hygiene and sanitation are poor. Virus A
hepatitis can be divided typically into inapparent,
anicteric 1nfection and icteric hepatitis.
Serological diagnosis of hepatitis A depends on
the appearance of immunoglobulins. The first to appear
is IgM which j~s detected during acute phase and reaches
peak level at about 6 weeks after the onset of infection
and decline thereafter.
The second 1mmunoglobulin is IgG antihepatitis A
which starts to appear 3 - 4 weeks after the onset and
reaches peak level within 3 - 11 months. Identif.ication
of this antibody appears to be the most appropriate
t_cchnique ~~c·r tLc~ s0rological diagnos_Ls oi hepntitis A
in the l~t0 cor1valescence or in serological stttdies of
hepatitis A prev~lence since it appears to be ~ fl2rsistent antibody