- Parasitic Causes of Diarrhea - Trichomoniasis; Coccidia; Cryptosporidium spp.; Giardia spp.; Whipworms; Hookworms - Bacterial Causes of Diarrhea - Treatment of Enteropathogenic Bacteria in Kittens; Enteropathogenic Bacteria Zoonotic Considerations - Viral Causes of Diarrhea - Diagnostic Approach to the Kitten With Suspected Infectious Diarrhea - Empirical Therapy for Kittens With Diarrhea of Unknown Cause - Conclusion