Lymphatic Filariasis

SEO Title: Lymphatic Filariasis: Causes, Symptoms, Transmission, Prevention and Elimination Programme

Category: Science & Technology | Health | Diseases | Public Health

UPSC Notes

Lymphatic filariasis (LF) is a neglected tropical disease caused by parasitic filarial worms. It can result in chronic swelling and disability, including elephantiasis.

Key Pointers

  • Commonly known as elephantiasis in its chronic form.

  • Major causative parasites:

    • Wuchereria bancrofti

    • Brugia malayi

    • Brugia timori

  • Transmitted through the bites of infected mosquitoes.

  • Affects the lymphatic system.

  • Chronic infection may cause:

    • Lymphedema

    • Hydrocele

    • Elephantiasis

  • India has historically been one of the countries with a significant LF burden.

  • Elimination strategy includes Mass Drug Administration (MDA).

  • India has undertaken the National Programme to Eliminate Lymphatic Filariasis.

Prelims Focus: Filarial worm → mosquito vector → lymphatic system → elephantiasis → MDA.