dracunculiasis (guinea worm disease)
DESCRIPTION
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. - PowerPoint PPT PresentationTRANSCRIPT
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DRACUNCULIASIS (GUINEA WORM DISEASE)
Frank Mu
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Dracunculiasis documented as far back as 1550 BC
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Dracunculus medinensis causes GWD
• Among longest nematodes infecting humans
• Longest male: 1.6 in.
• Longest female: 31 in.
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Life cycle revolves around water
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Larvae develop for two weeks inside copepods
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Ingestion of contaminated water leads to human D. medinensis transmission
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D. Medinensis migrate to lower limbs and induce blisters
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Diagnosis made by observing worm head protruding from blister
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No vaccines or medicine can treat or prevent Guinea Worm Disease
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Only way to remove D. medinensis is by extracting entire worm inch by inch
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Community education and awareness is a critical step towards prevention
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Prevention through filtering water sources
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Eradication efforts have reduced cases by 99%!
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The end of dracunculiasis as we know it?
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… Not so fast
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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.