EN
There are areas of proved and succesful prophylaxis of human's virus oinfections: vacines, gammaglobulin and synthetic viral inactivators.In case of vaccine application the very important tasks concern situations of decreased immunoglogical potency and viral latency.The progress and up to now achievments according to viral vaccines which may be used in immunocompromised people are presented in the paper, as well the specificity of studies on vaccines against latent viral infections.Gammaglobulin preparations especially of commercial production, are characterized.Mechanisms of their activity, different efficiency in viral infections and problem 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 infection.