Which of the following diseases can be diagnosed based on the given symptoms?

Symptoms: Swelling of legs, fever, and chills

Malaria, filariasis, dengue, and chikungunya are all vector-borne diseasea. Their causative agents are spread by mosquitoes. 

Fever and chills are observed in all the mentioned diseases however, swelling of the legs is observed only in the case of filariasis. Filariasis is caused by Wuchereria bancrofti a parasitic nematode whose larvae invade the lymph nodes and block the flow of lymph causing edema of lower limbs and genitals in males.