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
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?
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!!!