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Dracunculiasis (Guinea Worm Disease)

Dracunculiasis (Guinea Worm Disease). Frank Mu. Dracunculiasis documented as far back as 1550 BC. Dracunculus medinensis causes GWD. Among longest nematodes infecting humans Longest male: 1.6 in. Longest female: 31 in. Life cycle revolves around water.

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Dracunculiasis (Guinea Worm Disease)

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  1. Dracunculiasis (Guinea Worm Disease) Frank Mu

  2. Dracunculiasis documented as far back as 1550 BC

  3. Dracunculus medinensis causes GWD • Among longest nematodes infecting humans • Longest male: 1.6 in. • Longest female: 31 in.

  4. Life cycle revolves around water

  5. Larvae develop for two weeks inside copepods

  6. Ingestion of contaminated water leads to human D. medinensis transmission

  7. D. Medinensis migrate to lower limbs and induce blisters

  8. Diagnosis made by observing worm head protruding from blister

  9. No vaccines or medicine can treat or prevent Guinea Worm Disease

  10. Only way to remove D. medinensis is by extracting entire worm inch by inch

  11. Community education and awareness is a critical step towards prevention

  12. Prevention through filtering water sources

  13. Eradication efforts have reduced cases by 99%!

  14. The end of dracunculiasis as we know it?

  15. … Not so fast

  16. References • Belcher, D.W., F.K. Wurapa, W.B. Ward, and I.M. Lourie (1975), “Guinea Worm in Southern Ghana: Its Epidemiology and Impact on Agricultural Productivity,” American Journal of Tropical Medicine and Hygiene 24:243-249. • CDC. Renewed transmission of dracunculiasis---Chad, 2010. MMWR 2011;60:744—8 • Donald R. Hopkins, Ernesto Ruiz-Tiben, Philip Downs, P. Craig Withers, Jr., James H. Maguire (2005). "Dracunculiasis Eradication: The Final Inch". American Journal of Tropical Medicine and Hygiene 73 (4): 669–675. • Greenway, C. Dracunculiasis (guinea worm disease) CMAJ February 17, 2004 170:495-500 • Hopkins, Donald R.; Withers, P. Craig, Jr. (2002). "Sudan's war and eradication of dracunculiasis". Lancet 360: s21–2 • Keith Blayney (2002). "Caduceus vs Staff of Asclepius“ • Ruiz-Tiben, Ernesto, and Hopkins, Donald R. “Dracunculiasis (Guinea Worm Disease) Eradication.” Advances in Parasitology 61 (2006): 275-309. • Tropical Medicine Central Resource. "Dracunculiasis". Uniformed Services University of the Health Sciences. 2008 • Wikipedia. Dracunculiasis • World Health Organization. Dracunculiasis eradication: global surveillance summary, 2010. Wkly Epidemiol Rec 2011;86:189--98.

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