Explain the disease Elephantiasis.

(N/A) Elephantiasis,also known as $Filariasis$,is caused by filarial worms,specifically $Wuchereria$ ($W$. $bancrofti$ and $W$. $malayi$).
These parasites reside in the lymphatic vessels of the lower limbs for many years,causing chronic inflammation.
This leads to the characteristic swelling of the limbs,hence the name $Elephantiasis$.
Often,the genital organs are also affected,leading to severe deformities.
The pathogens are transmitted to a healthy person through the bite of a female mosquito vector.