Cat scratch disease is an illness that affects people, cats, dogs, and other wildlife. This syndrome was first identified in the 1950’s. People often experience fever, low energy, skin papules, and lymph node enlargement with the potential for much more advanced illness. In the United States the incidence is about 9.3 cases per 100,000 people annually-Jackson et all 1993. It is transmitted to humans from infected cat scratches and bites. A causative agent, Rochalimaea henselae was not identified until 1992; and the following year it was reclassified as Bartonella henselae a gram-negative bacteria. Since then, additional types of Bartonella that cause infections in people have also been identified.