Modern fish are not ancestors of humans. We don't have code for intermediaries between corals and humans. Once you figure this out you will understand why there are no Google hits on code skipping.
Modern fish. Ancient fish. Doesn't matter. No known Fish has coral/human immune functionality.
Because no known Fish of any Age has that functionality, and because Fish are intermediaries between coral and humans, that means that we have DNA code skipping.
Once you figure that out you'll understand why Evolutionary Theory is living on borrowed time...because code skipping ain't evolution!