Viruses in Animals

The zoonautic transmission of entros is not really clear. The one that i've become more interested in are like cho 29 and c 99, that clearly are recombinance of poleo with a coxake that cause paralysis. It's a matter of searching dixon polio. We found it because of the disease, but no one looked for many years, right? Right? So with corona. Some viruses were found mostly in certain animal, and some of them were found in multiple for example, coronas were found in bamboo rats, civets, raccoon dogs, hedgehogs.