SSC Selection Post 2022 PYQ — Question 33

The correct answer is option 1 i.e. parasitic worms

Elephantiasis, medically known as lymphatic filariasis, is caused by parasitic worms, specifically thread-like filarial worms such as Wuchereria bancrofti, Brugia malayi, and Brugia timori. These parasites are transmitted to humans through the bites of infected mosquitoes. Once inside the body, the larvae travel to the lymphatic system, where they mature and disrupt the normal flow of lymph, leading to severe swelling, usually in the legs, arms, breasts, or genitals. Over time, this causes the thickening and hardening of the skin, a condition referred to as elephantiasis due to its resemblance to an elephant’s skin. It is a major cause of disability in tropical regions and can be prevented through mosquito control and mass drug administration programs.