The role of EMF in biological systems is considered in a large number of works performed by various foreign scientists. The energy imparted to the EMF system by the ELF field is much less than the energy of thermal movements. But no work discusses the issues of impulse exchange in biological systems, and first of all, between molecules of (flexible) γ- protein and membranes that act as a capacitor of electrical impulses. The purpose of the article is to fill this gap in science by discussing the literature data on the effect of ELF and ELF EMFs on biological systems, primarily, the protein envelope of the virus + the host cell membrane.