They sold lots of animals, but they found no viruses in the animals themselves right? Sampling found it in the environment, but not in the animals? I might be

They sold lots of animals, but they found no viruses in the animals themselves right? Sampling found it in the environment, but not in the animals? I might be wrong but I swear I read they never found cov 2 in an animal that could transmit to humans https://www.nature.com/articles/s41586-023-06043-2 https://www.nature.com/articles/s41586-023-06043-2