Question
Identify the disease in a patient suffering from fever,pain on moving the eyeballs,pain in the legs after around 2 weeks after a bite by a vector as shown in the figure?
A. Trench fever.
B. RMSF.
C. Endemic typhus.
D. Scrub typhus.
Show Answer
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Correct Answer » A
Explanation
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Ans: A. Trench Fever.
The vector shown in the photograph above represents Louse which is responsible for Trench fever.
Louse
- Louse is a wingless insect.
- They have narrow heads and oval, flattened bodies.
- Their compound eyes are reduced in size or absent.
- Their antennae are short with three to five segments, and their mouth parts, which are retractable into their head, are adapted for piercing and sucking
- They are vectors of diseases such as trench fever,louse borne-typhus and louse borne-relapsing fever
Trench Fever
- The disease is caused by the bacterium Bartonella quintana and transmitted by lice.
- It is classically a five-day fever of the relapsing type.
- The incubation period is relatively long, at about two weeks.
- The onset of symptoms is usually sudden, with high fever, severe headache, pain on moving the eyeballs, soreness of the muscles of the legs and back, and frequently hyperaesthesia of the shins.
- The most constant symptom is pain in the legs