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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] People may feel tired, have a headache, or a fever. [2] Symptoms typically begin within 3–14 days following ...
Cat scratches generally aren't cause for concern — but you should watch for these symptoms. (Getty Images) (Getty Images) Cats are cute, and studies have shown that having one as a pet can ...
After such episode, the cat will generally return to its normal behaviour. [4] [5] These episodes can occur multiple times per day or per week, and may be triggered by endogenous or exogenous stimuli. [5] The rolling of the dorsal, lumbar region of skin is instigated by the skeletal muscle (cutaneous trunci).
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.
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.
Cat-scratch disease is due to an infection by B. henselae. It manifests as gradual regional lymph nodes enlargement (axilla, groin, neck) which may last 2–3 months or longer, and a distal scratch and/or red-brown skin papule (not always seen at the time of the disease). The enlarged lymph node is painful and tender.
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If a cat is carrying Bartonella henselae, then it may not exhibit any symptoms. Cats may be bacteremic for weeks to years, but infection is more common in young cats. Transmission to humans is thought to occur via flea feces inoculated into a cat scratch or bite, and transmission between cats occurs only in the presence of fleas.
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