Aggression in cats toward people is a serious problem. Beside the pain, a cat’s teeth and claws may harbor organisms that cause serious disease. Scratches may causes cat scratch fever, a condition caused by the organism Bartonella henselae. Cats also often have several bacteria in their mouths including Staphylococcus sp, Streptococcus sp., Moraxella and Pasturella multocida that can …