Cat Peeing On Concrete Floor Is Cat Pee Harmful?

Is cat pee harmful? - cat peeing on concrete floor

We recently had our cat peeing on the floor going in our basement. If we start cleaning, it was so bad that eventually the floor and some parts of the wall break to be soaked. After a day playing with my friend was very sick. Is the cat pee? There was a lot of pee went through the tile and is in the concrete and through the 2x4 and the wall panels, and was almost saturated and crystallized. Are there odors and avoid harmful situations for the people, because we have 2 children and wanted to feel bad