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Permafrost Worm
What Is Permafrost Worm? A permafrost worm is a nematode recovered from ancient Siberian permafrost that scientists revived after tens of thousands of years in cryobiotic suspension. Classification: Roundworms (Nematodes) › Permafrost Worm Key Takeaway Permafrost worm findings demonstrate that some nematodes can survive extremely long cryobiotic suspension. The discovery is relevant to biology and ... Read more
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Tapeworm
What Is a Tapeworm? A tapeworm is a long, flat, segmented parasitic worm that lives in the intestines of humans and animals. People most often become infected by eating raw or undercooked beef, pork, or fish carrying tapeworm larvae, or by swallowing food or water contaminated with tapeworm eggs. According to the CDC, human tapeworm ... Read more
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Hookworm
What Is a Hookworm? A hookworm is a parasitic roundworm that attaches to the lining of the small intestine and feeds on blood. The two species that most commonly infect humans are Necator americanus and Ancylostoma duodenale. According to the CDC, hookworm is a leading cause of anemia and malnutrition in parts of the world ... Read more
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Opisthorchis viverrini
Opisthorchis viverrini (commonly referred to as the Southeast Asian liver fluke) Opisthorchis viverrini Details: Type:Helminth (parasitic flatworm) Category:Flukes (Trematodes) Transmission Type:Foodborne (consumption of raw or undercooked freshwater fish) Primary Target Area:Bile ducts within the liver Lifecycle Form:Metacercariae (infective encysted stage in fish), juvenile fluke, adult fluke (bile duct stage) Incubation Period:Symptoms may develop weeks to ... Read more
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Paragonimus westermani
Paragonimus westermani (commonly referred to as the lung fluke) Paragonimus westermani Details: Type:Helminth (parasitic flatworm) Category:Flukes (Trematodes) Transmission Type:Foodborne (consumption of raw or undercooked crustaceans) Primary Target Area:Lungs (primarily), occasionally brain or other tissues Lifecycle Form:Metacercariae (infective encysted stage in crustaceans), juvenile fluke (migratory stage), adult fluke (lung stage) Incubation Period:Symptoms may develop weeks to ... Read more
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Clonorchis sinensis
Clonorchis sinensis (commonly referred to as the Chinese liver fluke) Clonorchis sinensis Details: Type:Helminth (parasitic flatworm) Category:Flukes (Trematodes) Transmission Type:Foodborne (consumption of raw or undercooked freshwater fish) Primary Target Area:Bile ducts within the liver Lifecycle Form:Metacercariae (infective encysted stage in fish), juvenile fluke, adult fluke (bile duct stage) Incubation Period:Symptoms may develop weeks to months ... Read more
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Fasciolopsis buski
Fasciolopsis buski (commonly referred to as the giant intestinal fluke) Fasciolopsis buski Details: Type:Helminth (parasitic flatworm) Category:Flukes (Trematodes) Transmission Type:Foodborne (ingestion of contaminated aquatic plants) Primary Target Area:Small intestine Lifecycle Form:Metacercariae (infective encysted stage on aquatic vegetation), juvenile fluke, adult fluke (intestinal stage) Incubation Period:Symptoms may develop weeks to months after ingestion. Transmission: Fasciolopsis buski ... Read more
Fasciola hepatica (Liver Fluke)
Fasciola hepatica (commonly referred to as the liver fluke) Fasciola hepatica Details: Type:Helminth (parasitic flatworm) Category:Flukes (Trematodes) Transmission Type:Foodborne / Waterborne (ingestion of contaminated aquatic plants or water) Primary Target Area:Liver and bile ducts Lifecycle Form:Metacercariae (infective encysted stage on aquatic vegetation), juvenile fluke (migratory stage), adult fluke (bile duct stage) Incubation Period:Symptoms may develop ... Read more
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Schistosoma japonicum
Schistosoma japonicum (commonly associated with intestinal and hepatosplenic schistosomiasis) Schistosoma japonicum Details: Type:Helminth (parasitic flatworm) Category:Flukes (Trematodes) Transmission Type:Waterborne (skin penetration by larval stage) Primary Target Area:Intestinal blood vessels (mesenteric veins), liver Lifecycle Form:Cercariae (free-swimming infective larval stage), schistosomula, adult worms (blood vessel stage), eggs Incubation Period:Early symptoms may appear within weeks after exposure; chronic ... Read more
Schistosoma haematobium
Schistosoma haematobium (commonly associated with urinary schistosomiasis) Schistosoma haematobium Details: Type:Helminth (parasitic flatworm) Category:Flukes (Trematodes) Transmission Type:Waterborne (skin penetration by larval stage) Primary Target Area:Blood vessels of the urinary tract, bladder Lifecycle Form:Cercariae (free-swimming infective larval stage), schistosomula, adult worms (blood vessel stage), eggs Incubation Period:Early symptoms may develop within weeks of exposure; chronic disease ... Read more
Frequently Asked Questions
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