[The risk of becoming infected with hepatitis B and C viruses in the pupils of children's boarding schools].

The risk of contamination of 487 inmates of 5 boarding schools at northwestern Ukraine with hepatitis B (HB) and hepatitis C (HC) viruses was analyzed and the role of some factors facilitating the spread of these infections among the inmates of such schools was shown. In 28.3 +/- 2.

[The importance of clinical laboratory data in the differential diagnosis of group hepatitis B diseases].

Group disease with hepatitis B (or A against the background of chronic HBsAg carrier state) may be diagnosed (or excluded) on the basis of high (or low) detectability of HBsAg in patients with jaundice. Perfection of epidemiological diagnosis is possible with implementation of indication of not less than three immunological markers: HBsAg, IgM anti-Hbs, IgM anti-HAV.