[Possibilities and etiologic problems in prophylaxis of human virus infections].

There are areas of proved and successful prophylaxis of human's virus infections: vaccines, gammaglobulins and synthetic viral inactivators. In case of vaccine application the very important tasks concern situations of decreased immunological potency and viral latency. The progress and up to now achievements according to viral vaccines which may be used in immunocompromised people are presented in the paper, as well as the specificity of studies on vaccines against latent viral infections. Gammaglobulin preparations especially of commercial production, are characterized. Mechanism of their activity, different efficiency in viral infections and problems of safety, point on the important complementary role of gammaglobulin prophylactic application. Disinfecting agents grow in importance, so the main topic presented concerns the requirements, which must be fulfilled to achieve satisfactory results in preventing virus infections.