Animal infection

Basically its a dimension where people are becoming their favorite animal through goo, and also when i say that i mean like fully become an animal no half human type shiz and other animals can transform humans through saliva or goo from their body even though the person will still transform into their favorite animal and not the animal the person who transformed them is and they can still do everything a human does and they keep their memories, control of their body, etc but if they last long enough the universe is just like "nu uh" and transforms them either way and dont ask about the voice im lazy