[Serological proof of the existence of a variety of non-A, non-B hepatitis with a fecal-oral transmission mechanism].
An outbreak of hepatitis in one of Siberian regions mainly among adults of 19-35 years of age was studied. The epidemiological studies showed the infection to spread by the fecal-oral mechanism of transmission. In 90% of the patients the disease was mild, in 10% of moderate severity; no severe forms or fatal outcomes were observed. This refers also to pregnant women irrespective of the term of pregnancy. Among 78 subjects examined, antibody to hepatitis A virus of the IgM class (anti-HAV-IgM) were detected in 14%, HBsAg in 6%. No rise in titer of total anti-HAV in the convalescent period (within 3-6 months) was observed. Immune electron microscopy studies of fecal extracts from patients revealed immune complexes of virus particles 32-35 nm in size which were formed only with sera from patients in the acute stage and convalescents from this outbreak (to a lower degree). Negative results were obtained with sera containing anti-HAV and antibody to hepatitis non-A-non-B virus (HnAnB) with fecal-oral transmission mode from India, Central Asia, and Afghanistan. These data attest to the distinct nature of this causative agent among HnAnB viruses with the fecal-oral transmission mechanism.
Doroshenko
N V
NV
Smolina
T G
TG
Zairov
G K
GK
Stakhanova
V M
VM
D003289:Convalescence; D003937:Diagnosis, Differential; D004196:Disease Outbreaks; D005243:Feces / Q000032:analysis / Q000382:microbiology; D006508:Hepatitis Antibodies / Q000032:analysis; D006514:Hepatitis B Surface Antigens / Q000032:analysis; D006526:Hepatitis C / Q000175:diagnosis* / Q000453:epidemiology / Q000635:transmission; D006518:Hepatitis Viruses / Q000276:immunology / Q000302:isolation & purification; D006525:Hepatitis, Viral, Human / Q000175:diagnosis*; D006507:Hepatovirus / Q000276:immunology; D006801:Humans; D007136:Immunoglobulins / Q000032:analysis; D008854:Microscopy, Electron; D012698:Serologic Tests; D012800:Siberia
D006508:Hepatitis Antibodies; D006514:Hepatitis B Surface Antigens; D007136:Immunoglobulins
Serologicheskie dokazatel'stva sushchestvovaniia raznovidnosti gepatitia ni a, ni B s fekal'no-oral'nym mekhanizmom peredachi.