[Frequency of asymptomatic C viral infections in children referred to hospital treatment for various reasons].

In 2221 children aged 0.468-17.580 (56% boys and 44% girls) referred to hospital treatment for various reasons, antibodies anti HCV were determined with 3rd Generation Axsym (Abbott) test.

[Asymptomatic HBsAg antigenemia in children referred to hospital treatment for various reasons].

HBsAg antigenemia still constitutes a serious clinical problem. In 852 children at the age of 3 months to 17 years (54.2% boys and 45.