[Hepatitis beta-antigen titer and subtypes of acute and chronic hepatitis].
The incidence of the hepatitis B antigen (HBSAg) in the sera of 650 acute virus hepatitis (AVH) and 200 chronic hepatitis (CH) patients was determined by screening test (counter-immunoelectrophoresis and immunodiffusion). The findings showed a positivity in 28% of the acute virus hepatitis  patients and in 47% of the chronic hepatitides. Further, the detected HB Ag was investigated both quantitatively (titer) and qualitatively (subtype). The results obtained have shown the absence of differences in the HB Ag-titer distribution of the two groups investigated and the prevalence of the HBSAg/ayw subdeterminant in both groups (62% in AVH and 57% in CH patients).
D000208:Acute Disease; D000917:Antibody Formation; D002908:Chronic Disease; D006506:Hepatitis A / Q000382:microbiology*; D006509:Hepatitis B / Q000382:microbiology*; D006511:Hepatitis B Antigens / Q000302:isolation & purification*; D006801:Humans; D005779:Immunodiffusion; D007122:Immunoelectrophoresis
D006511:Hepatitis B Antigens
Hepatitis beta-Antigentiter und Subtypen bei akuten und chronischen Hepatitiden