Help me with this question on virus?pls?

When an virus attacks a cell. the RNA is injected in the cell and then from the nucleus the DNA gets transcribed to RNA and produced proteins. Then the DNA that was injected from the capsid hijack the mechanism, and starts coding for its own proteins and then kills the DNA and makes more viral shells. Eventually the viral shells find ways to lyse out of the cell. When the shells makes a lot of protein the membrane dissolves. then the cell lyses. When the shell exits from the 1st infected cell, they bud and when they push against the cell's outer membrane, they take some of the membrane they take some of the membrane with them. Then that won't be known as foreign particle because the cell looks like the cell that was infected. In this case, even if it replicates out of the cell how would it affect the body because it wont be known as foreign substance anymore????