You can get cp from shingles. It isn't as contagious but t is possible. I know a kid who got cp from his dad getting shingles and know I read it is possible.
We just recently figured out that my dad having shingles is how my kid's caught cp back in January. His doctor only recently confirmed that that was what he had (previously they thought it was a different type of virus). We wondered for the longest time how our youngest two contracted it, but now it makes sense. They both had extremely mild cases, the boy wasn't phased AT ALL by them- never touched/itched them or anything. The baby was a bit more bothered though. Both were done and over with them in less than a week though. My oldest had had the shot at 1 (against our will) and never caught them at all.