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Dracunculiasis, commonly known as Guinea worm disease, is an excruciating condition: A parasitic worm grows inside the body, creating a painful blister that ruptures, enabling the worm to exit and deposit its eggs in water. Sufferers not only experience severe pain but also face risks of secondary infections, lifelong paralysis, and significant economic hardships.
Fortunately, this devastating illness is nearing eradication. Recently, at an event hosted by the American Museum of Natural History in New York City, President Jimmy Carter and the Carter Center revealed that only 126 cases of Guinea worm disease were reported globally, marking a 15 percent decline from 2013. Dracunculiasis is poised to become the second human disease ever eradicated, following smallpox.
“The Carter Center operates on the principle of tackling challenges others avoid,” President Carter explains to mental_floss. “In the 1980s, we discovered that Guinea worm was neglected, as it affected remote, inaccessible villages in jungles and deserts, where literacy was low ... So, we took it upon ourselves to address it.”
The museum's new exhibit, Countdown to Zero: Defeating Disease, developed in collaboration with the Carter Center, offers visitors a chance to explore Guinea worm and other illnesses like polio, malaria, tuberculosis, and Ebola. During an early preview and our discussion with President Carter (available in full here), we gathered several intriguing insights.
1. Guinea worm disease is relatively unknown, falling under the World Health Organization's category of 'neglected tropical diseases.' The Carter Foundation also focuses on four similar conditions: schistosomiasis, lymphatic filariasis (elephantiasis), trachoma, and onchocerciasis (river blindness). 'This year, we’ll treat approximately 25 million people to prevent blindness from these diseases,' President Carter notes. 'That’s more than the population of New York State.'
2. The disease originates in stagnant ponds, often the sole water source in affected regions. These ponds contain copepods, tiny crustaceans that carry Guinea worm larvae (Dracunculus medinensis). When consumed, the larvae mature and mate inside the human body. The female worm then travels to another area, usually the lower limbs, where it remains for months. After 10 to 14 months, a blister forms, housing a fully grown parasite up to 3 feet long, 'as wide as a cooked spaghetti noodle,' according to the CDC. The blister bursts within 24 to 72 hours, and victims often return to the pond to soothe the pain, inadvertently restarting the cycle as the worm releases eggs into the water.
3. Guinea worm disease dates back to ancient times, as does its traditional treatment: slowly winding the worm around a stick to extract it. Some believe this method inspired the medical symbol known as the Staff of Asclepius. (Warning: Images of the extraction process are graphic; a video detailing the procedure can be found here, featuring Dr. Donald R. Hopkins of the Carter Center.)
4. Evidence of Guinea worm disease was discovered in a 3000-year-old Egyptian mummy, where a calcified worm was found.
5. Eliminating copepods, which carry Guinea worm larvae, is straightforward: Villagers simply need to filter their water through fine nylon mesh. For nomads, who cannot transport large quantities of filtered water, the Carter Center has provided 23 million portable pipe filters—reeds with mesh ends—allowing them to safely drink from ponds while on the move.
6. Surprisingly, fashion has played a role in combating Guinea worm disease. Since many affected individuals live in remote areas and speak indigenous languages, the Carter Foundation used visual aids to communicate. 'We depicted two women: one filtering water and free of Guinea worm, and the other not filtering water and suffering from the disease,' President Carter explains. 'These illustrations were even printed on dresses and shirts to spread awareness.'
7. In Mali, Guinea worm disease is known as 'the disease of the empty granary.' It prevents children from attending school and farmers from working their fields or caring for livestock, leading to severe economic repercussions.
8. When the Carter Foundation began its fight against Guinea worm disease in 1986, there were roughly million cases annually across 20 countries. Today, the disease is confined to just 30 villages in four African nations: South Sudan, Chad, Mali, and Ethiopia. 'We now track every known case worldwide,' President Carter states. 'Our focus is on monitoring villages and ensuring infected individuals do not contaminate water sources, which could spread the disease further. I’m confident we’ll see the last case within the next few years.'
9. Eradication efforts face significant hurdles. 'Ongoing conflicts in Mali and South Sudan make it difficult to reach affected villages promptly,' President Carter notes. 'Additionally, nomadic populations pose a challenge, as they move frequently for seasonal work. A person might drink contaminated water in one location and, a year later, be 200 miles away when the worm emerges.'
10. “Smallpox samples are stored in freezers, and viruses can be preserved for future use, such as vaccine production,” explained Mark Siddall of AMNH, who contributed to the exhibit. “However, Guinea worm is a nematode, an animal. Once the last case is eradicated, even if frozen specimens exist, they are completely inert—utterly incapable of revival.” President Carter adds, “If every individual consistently filtered their drinking water, copepods would be eliminated, ensuring Guinea worm could never return to a village—provided everyone adheres to the guidelines.”
All images courtesy of the American Museum of Natural History and The Carter Foundation.
