They ate raw centipedes -- and then the headaches began

By Michael Nedelman, CNN

Updated 2000 GMT (0400 HKT) August 1, 2018

<strong>Cyclosporiasis:</strong> An intestinal infection caused by the cyclospora cayetanensis parasite, seen here on a stool sample through a microscope on a slide. Cyclospora infect the small intestine and most commonly cause watery diarrhea; other symptoms include abdominal cramping, nausea and weight loss.
Photos: What to know about tapeworms and parasites
Cyclosporiasis: An intestinal infection caused by the cyclospora cayetanensis parasite, seen here on a stool sample through a microscope on a slide. Cyclospora infect the small intestine and most commonly cause watery diarrhea; other symptoms include abdominal cramping, nausea and weight loss.
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<strong>Trichinella spiralis:</strong> If a human or animal eats meat infected with Trichinella cysts, the Centers for Disease Control and Prevention says, their stomach acid dissolves the hard covering of the cysts. The worms pass into the small intestine, where they lay eggs that develop into immature worms, which travel through the arteries and into the muscles. There, they curl up and return to the original cyst formation, and the life cycle continues. Symptoms can include nausea, diarrhea, vomiting, headaches, fevers, chills, cough, facial swelling, aching joints and muscle pain.
Photos: What to know about tapeworms and parasites
Trichinella spiralis: If a human or animal eats meat infected with Trichinella cysts, the Centers for Disease Control and Prevention says, their stomach acid dissolves the hard covering of the cysts. The worms pass into the small intestine, where they lay eggs that develop into immature worms, which travel through the arteries and into the muscles. There, they curl up and return to the original cyst formation, and the life cycle continues. Symptoms can include nausea, diarrhea, vomiting, headaches, fevers, chills, cough, facial swelling, aching joints and muscle pain.
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<strong>Anisakiasis: </strong>The nematodes parasite of the genus anisakis causes an illness caused by eating parasite-contaminated raw fish or seafood. The anisakid nematodes can invade the stomach wall or intestines, causing symptoms of gastrointestinal pain, nausea and vomiting. Some people will develop complications, including digestive bleeding and peritonitis, inflammation of the inner wall of the abdomen. An allergic response to the worm can cause life-threatening anaphylaxis.
Photos: What to know about tapeworms and parasites
Anisakiasis: The nematodes parasite of the genus anisakis causes an illness caused by eating parasite-contaminated raw fish or seafood. The anisakid nematodes can invade the stomach wall or intestines, causing symptoms of gastrointestinal pain, nausea and vomiting. Some people will develop complications, including digestive bleeding and peritonitis, inflammation of the inner wall of the abdomen. An allergic response to the worm can cause life-threatening anaphylaxis.
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<strong>Tapeworm, aka Neurocysticercosis, aka T. solium:</strong> This is Taenia solium, the pork tapeworm that causes one of the grossest diseases we're heard about in a while. It's responsible for the worst headache of Luis Ortiz's life. When surgeons looked in his brain, they found a "wiggling" tapeworm inside a cyst. That's called neurocysticercosis, and the Centers for Disease Control and Prevention says that about 1,000 people a year get them from eating something infected with "microscopic eggs passed in the feces of a person who has an intestinal pork tapeworm."