Induction of macropinosome membrane permeabilization triggered by an interaction between the host membrane and a membrane-penetration protein associated with the capsid. Occurs after internalization of the virus in a macropinosome, and results in release of the viral contents from the macropinosome into the host cell cytoplasm.
viral entry into host cell via macropinocytosis followed by macropinosomal membrane permeabilization