Which disease causes excess swelling of the legs?
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A.
Cholera
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B.
Tuberculosis
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C.
Leprosy
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D.
Elephantiasis
Correct Answer:
@.
Explanation:
The correct answer is Elephantiasis. Also known as lymphatic filariasis, this tropical disease is caused by parasitic filarial worms transmitted through mosquito bites. These parasites obstruct the lymphatic system, preventing the normal drainage of lymph fluid. This leads to chronic fluid accumulation and severe, often disfiguring swelling in the limbs—primarily the legs—and genitals. Over time, the affected skin can become thick and hardened. Other options are incorrect for the following reasons: - Cholera is a bacterial infection that leads to severe diarrhea and dehydration, the opposite of fluid retention. - Tuberculosis is a bacterial disease that primarily attacks the lungs and does not typically result in leg swelling. - Leprosy is a chronic infection of the skin and nerves that can cause lesions and deformities, but it is not characterized by the massive, widespread swelling seen in elephantiasis.
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