What is the fifth step of virus proliferation?

Release of newly produced products, devoid of lipid envelope released by destruction of host cell envelope by enzymes produced by virus causing cell lysis. Those with a lipid bilayer bud from host cell surface, during formation of capsid, some proteins are synthesized necessary for exportation of viruses outside host plasma membrane, interaction between viral membrane proteins and capsids causes enveloping by a membrane fragment forming a bud for exprotation, for then the cell dies because of disturbed metabolism.