A fifteen year old girl comes into the emergency room with a pus-filled nodule t

Question

A fifteen year old girl comes into the emergency room with a pus-filled nodule that has formed along a thin scratch line. The girl says that she was playing with her new kitten when the animal got over-exuberant and scratched her arm. The scratch had been healing for the last 5 to 7 days, but then the pustule appeared and the girl developed a fever, headache, sore throat and red, itchy eyes. The doctor takes down her history and then prescribes oral tetracycline. A week later, the girl sees the doctor and tells her that the antibiotics were quite effective. What did the girl have and what was the causative agent?

Explanation / Answer

The symptoms observed in fifteen year old girl:

Pus-filled nodule that has formed along a thin scratch line.

Pustule appeared

Fever

Headache

Sore throat

Red and itchy eyes.

So the girl have Cat scratch disease (fever)

The causative agent is Bartonella henselae (bacterial infection).

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