[Influenza in man and animals].

A review of references found in World literature concerning the present day problem of grippe virus participation in man's and animals' pathology is made. New aspects of the relations between grippe viruses in man and in the animals, strain circulation, changes in their antigenic structures and the arisal of spontaneous mutations as well as the possibility for preserving human grippe strains in animals during interepidemical periods are revealed. Various hypotheses confirming this possibility are discussed. Results obtained in this field are summed up and an attempt to compare and analyse them is made in view to construct all-round conceptions and elaborate a strategy related with the study of grippe viruses also in animals and birds as their eventual biological reservoir. Data presented are of interest not only for etiology and epidemiology but also for the ecology of viral infections. Conclusions concerning the need to study grippe virus interrelations in man and animals in an all-round aspect, including the participation of various specialists, are made.