In which disease does mosquito transmitted pathogen cause chronic inflammation of lymphatic vessels?
Answer: (C) Elephantiasis. Answer: (C) Elephantiasis Solution: NCERT states that Wuchereria (filarial worms), transmitted by the bite of female mosquito vectors, cause a slowly developing chronic inflammation of the lymphatic vessels of the lower limbs — the disease called elephantiasis (filariasis).
- A.Ringworm disease
- B.Ascariasis
- C.Elephantiasis✓
- D.Amoebiasis
Correct Answer
(C) Elephantiasis
Solution & Explanation
Answer: (C) Elephantiasis Solution: NCERT states that Wuchereria (filarial worms), transmitted by the bite of female mosquito vectors, cause a slowly developing chronic inflammation of the lymphatic vessels of the lower limbs — the disease called elephantiasis (filariasis). Why not the others: Ringworm is a fungal skin disease (no mosquito, no lymphatic vessels); ascariasis is caused by the roundworm Ascaris affecting the intestine; amoebiasis is a protozoan (Entamoeba) disease of the large intestine transmitted by houseflies, not mosquitoes. NCERT Reference: NCERT Ch7, p.133, lines 16-23: "chronic inflammation of the organs in which they live for many years, usually the lymphatic vessels of the lower limbs and the disease is called elephantiasis"