[Intensification and effectiveness of scientific research in hygiene (several problems of information supply)]

The nature of the concept "intensification" and the notions effect and effectiveness, associated with it are discussed. The nature of the separate kinds effect, obtained in hygienic science are determined - primary (health) and secondary (derivative). Effectiveness is determined on that base - as juxtaposition of the kinds of effects obtained with the resources spent in the field of hygienic science. Studies were carried out on the increased intensity of utilization of information resources as factor for the improvement of effectiveness in hygienic science. The place and role of information - retrieval systems are determined. Numerous concrete information systems are discussed as well as some of the factors in the evaluation of their effectiveness.