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Cat-scratch disease (CSD) is an infectious disease that most often results from a scratch or bite of a cat. [4] Symptoms typically include a non-painful bump or blister at the site of injury and painful and swollen lymph nodes . [ 2 ]
After a cat bite, the skin usually closes rapidly over the bite and may trap microorganisms. [14] [8] The bite from a cat can infect a person with: Cat-scratch disease, caused by the bacterium Bartonella henselae [8] [15] Cat-scratch disease is a bacterial disease that people may get after being bitten or scratched by a cat.
Kittens in particular are more likely to be infected with and pass along CSD, and are also considered more likely to scratch and bite a human while playing compared to an older cat.
Bartonella henselae, formerly Rochalimæa henselae, is a bacterium that is the causative agent of cat-scratch disease [1] (bartonellosis). Bartonella henselae is a member of the genus Bartonella, one of the most common types of bacteria in the world. [specify] It is a facultative intracellular microbe that targets red blood cells.
What it looks like: The most recognizable reaction on this list is the bullseye rash—a large, red, target-like rash that signals the early stages of Lyme disease from the bite of an infected ...
Symptoms to note: Flea bites are very itchy, and they might even become sore or painful, causing a rash around the affected skin. Scratching the bites could cause these symptoms to worsen or even ...
Cat scratch disease occurs worldwide. Cats are the main reservoir of Bartonella henselae , and the bacterium is transmitted to cats by the cat flea Ctenocephalides felis . [ 29 ] Infection in cats is very common with a prevalence estimated between 40 and 60%, younger cats being more commonly infective.
A venomous spider bite (like this brown recluse bite) can cause a red or purplish rash radiating from the site of the bite. There are only a few species of spiders in the U.S. that can bite humans.