Cat scratch disease is caused by Bartonella henselae transmitted through cat scratches. Understanding the connection between feline welfare, flea control, and zoonotic disease.
Cat scratch disease creates a welfare connection between flea control, feline wellbeing, and human health. Flea infestation itself causes significant welfare harm to cats through pruritus, anemia in heavy infestations, and flea allergy dermatitis. The role of fleas in transmitting Bartonella between cats and to humans adds a zoonotic dimension to flea control beyond direct feline welfare. Adequate flea prevention protects cats from the direct welfare harm of infestation while simultaneously reducing Bartonella transmission risk. The interaction demonstrates how human and animal health are interconnected through parasite control.