I think it is already here in chicken.
My Vet told me that there is an epidemic of severe diarrhea in dogs and the common food causing it is chicken. I have noticed the same in myself to a degree. When I eat fresh chicken my digestion is greatly effected. When I eat chicken that I had frozen from the end of 2022 everything is fine.
Millions of chickens in my region have been killed due to supposed bird flu(are they new flocks being injected) and then there is the altered chicken feed that causes hens to lay less eggs .