The Glens Veterinary Hospital

There are many diseases that can be transmitted from animals to humans. These diseases are called zoonotic diseases. Although the list below is by no means comprehensive, some of the more common diseases that we can get from our household pets are:

• Ringworm, which is a fungal infection of the skin
• Hook worm, roundworm and tapeworm infection
• Toxoplasmosis
• Cat scratch disease
• Scabies, a mite that causes severe itchiness and skin lesions

In this article we are going to look at cat scratch disease (CSD), the cause of it, the symptoms and how to prevent it. Cat scratch disease, or cat scratch fever, is caused by an organism called Bartonella henselae or formerly called Rochalimaea henselae. It is a small anaerobic (organism which does not need oxygen to survive), gram-negative, non-motile bacterium. Domestic cats are the natural hosts for this organism and the animal from which humans can contract the disease (also known as the vector). If a cat harbors this bacterium, the cat very rarely shows any signs of the disease which is described as asymptomatic. It is therefore impossible to tell if a cat is infected with this organism without further testing. Fleas are the organism responsible for transmission of the disease between cats and therefore flea control is one of the best ways to prevent this disease. The infection rate is much higher in a population of cats that are flea ridden and can be as high as 61%. As a cat scratches and bites at fleas, the organism gets stuck between their teeth and under their nails. Kittens younger than 12 months are 15 times more likely to carry the infection than adult cats.