What causes cat-scratch disease?
Cat-scratch disease is caused by a type of bacteria (germs) called Bartonella henselae. These germs may live in the saliva of infected cats without making them sick. Fleas spread the germs between cats, and these cats can pass them on to humans. The germs usually spread after the cat licks its paws then scratches or bites human skin. The germs may enter through your wound if an infected cat licks it. You may also get sick if you have other ways of close contact with the cat. Rubbing your eyes without washing your hands after holding a cat may also spread CSD. What are the signs and symptoms of cat-scratch disease? You may see painless blisters or bumps along your wound 3 to 10 days after being bitten or scratched. Lymph nodes near the bitten or scratched area may become red, swollen, and painful 1 to 3 weeks later. These often include lymph nodes around the neck, armpit, and groin. Pus may also form within these lymph nodes. Other symptoms may include loss of appetite, rash, sore throa