Guinea worm disease
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Guinea Worm Disease. By: Daniel Coward. Guinea Worm Disease. It is a preventable waterborne disease caused by a parasite. Dracunculus medinensis. Also known as the “Guinea worm”. Dracunculus medinensis. Also known as the “Guinea worm” The largest tissue affecting parasite in humans.

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Guinea Worm Disease

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Guinea Worm Disease

By: Daniel Coward


Guinea Worm Disease

  • It is a preventable waterborne disease caused by a parasite


Dracunculus medinensis

  • Also known as the “Guinea worm”


Dracunculus medinensis

  • Also known as the “Guinea worm”

  • The largest tissue affecting parasite in humans


Dracunculus medinensis

  • Also known as the “Guinea worm”

  • The largest tissue affecting parasite in humans

  • Adult female carries about 300 embryos


Etiology

  • The disease is contracted when an individual drinks water that is contaminated with the parasite.


Pathogenesis


Pathogenesis

Foot blister induced by the female guinea worm

Guinea worm emerging


Treatment

  • There is NO DRUG and no VACCINE to prevent infection


Treatment

  • There is NO DRUG and no VACCINE for guinea worm disease to prevent infection

  • After the worm emerges, it can be pulled out very slowly


Treatment

  • Many infected people get the worm out by twirling a stick


Risk Groups

  • Occurs almost exclusively in isolated rural areas.


Risk Groups

  • Occurs almost exclusively in isolated rural areas.

  • Occurs only in 5 countries in sub-Saharan Africa: Sudan, Ghana, Nigeria, Niger, and Mali.


Risk Groups

  • In 2007, only 9,585 cases of GWD were reported. Most of those cases were from Sudan (61%) and Ghana (35%).


Prevelance/Incidence

  • The disease occurs at two different times of the year


Prevelance/Incidence

  • The disease occurs at two different times of the year

  • Near the Sahara the transmission occurs during the rainy season


Prevelance/Incidence

  • The disease occurs at two different times of the year

  • Near the Sahara the transmission occurs during the rainy season

  • In the Savanna the transmission occurs during the dry season


Why this matters?

  • The disease has a limited geographic distribution

  • It is seasonal in nature


So?


So?

  • It is easy to target and eradicate it from endemic areas


Socioeconomic Effects

  • Estimated that infected people lose 100 days of work and children miss 25% of the school year


Prevention

  • Guinea worm disease is a vulnerable disease because its transmission cycle relies on humans


Prevention

  • Guinea worm disease is a vulnerable disease because its transmission cycle relies on humans

  • It is possible to permanently eliminate the disease with the use of prevention techniques


Prevention

  • Filter water!


Prevention

  • Educate!


Prevention

  • Boil Water!


Prevention

  • Only drink water from underground sources


Eradication

  • Carter Center leads the way


Eradication

  • Others Follow!


Eradication

  • Educate


Eradication

  • Educate

  • Treatment


Eradication

  • Educate

  • Treatment

  • Larvicides


Eradication

  • Educate

  • Treatment

  • Larvicides

  • Pond Caretakers


Eradication Results

Great!!!


Eradication Results

Great!!!


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