[Incidence of e-antigen and antibodies against it in a selected group of HBsAg-positive Vietnamese citizens].

In 23 citizens of the Vietnamese Socialist Republic on arrival in Czechoslovakia HBsAg positivity of serum was revealed which in 78.2% of subjects was confirmed during a repeated examination after 2-3 months. At that time also HBeAg and antibodies against it were assessed. HBeAg was found in 13.0% and anti-HBe in 47.8% of the subjects with repeatedly positive HBsAg, and anti-HBe in 21.8% of subjects, where HBsAg was negative during repeated examinations. The authors emphasize the importance of assessment of these markers of hepatitis B from the clinical and epidemiological aspect.