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Cat scratch disease is the common name for bartonellosis, a condition known as zoonosis (a disease that is spread from animals to humans) and transmitted by the bacteria Bartonella Henselae. The cat is considered to be a reservoir of this bacteria and it can be transmitted when the animal bites or scratches humans, or when the latter's hands are contaminated by the bacteria and rubs their eyes. Dogs can also carry and transmit the bacteria, but this is much less common.
Bartonella Henselae can infect humans, as well as other mammals and animal species worldwide. Children under the age of 15 are the most sensitive, as are people with immunodeficiency. It spreads throughout the body through the bloodstream. It is an optional intracellular Gram negative bacteria.
If the origin of the bacteria remains unclear, some researchers assume that it would be transmitted to cats by ticks or fleas.
What are the symptoms of cat scratch disease