 This research found that the microbial population of cats fed whole, prey diets did not differ from those fed ground prey diets. However, when some cats became ill, they showed increased levels of certain bacteria, such as Carpacarchus and Escharichus subgenus Ugella. This suggests that the presence of Salmonella could have caused changes in the microbiome of the cats, which could explain why some cats became sick while others did not. This article was authored by K. R. Kerr, S. E. Dowd, and K. S. Swanson.