The entry of a symbiont into a host cell, following endocytosis, via permeabilization of the endosomal membrane by membrane penetration protein(s) of the symbiont. This process mediates the entry of some non-enveloped virus into eukaryotic cells. In some cases, viral membrane-penetration protein requires to be activated to display its membrane penetrating activity. Activation can be due to receptor binding or the acidic pH of the endosomal lumen.
viral entry via permeabilization of endosomal membrane