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Schistosoma mansoni
Schistosoma mansoni (commonly associated with intestinal schistosomiasis) Schistosoma mansoni 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 disease can ... Read more
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Dipylidium caninum
Dipylidium caninum (commonly referred to as the flea tapeworm) Dipylidium caninum Details: Type:Helminth (parasitic tapeworm) Category:Intestinal cestode (zoonotic) Transmission Type:Ingestion of infected fleas (zoonotic) Primary Target Area:Small intestine Lifecycle Form:Egg packets, cysticercoid larva (infective stage in fleas), adult tapeworm (intestinal stage) Incubation Period:Adult worms typically develop within 2 to 3 weeks after ingestion of an ... Read more
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Echinococcus multilocularis
Echinococcus multilocularis (commonly associated with alveolar echinococcosis) Echinococcus multilocularis Details: Type:Helminth (parasitic tapeworm) Category:Tissue cestode (zoonotic tapeworm) Transmission Type:Fecal-oral (wild canid-associated) Primary Target Area:Liver (primarily), with possible spread to lungs or other organs Lifecycle Form:Egg (infective stage), alveolar cyst (larval stage in humans), adult worm (intestinal stage in foxes and other canids) Incubation Period:Symptoms may ... Read more
Echinococcus granulosus
Echinococcus granulosus (commonly associated with hydatid disease) Echinococcus granulosus Details: Type:Helminth (parasitic tapeworm) Category:Tissue cestode (zoonotic tapeworm) Transmission Type:Fecal-oral (zoonotic, dog-associated) Primary Target Area:Liver (most common), lungs, other organs Lifecycle Form:Egg (infective stage), hydatid cyst (larval stage in humans), adult worm (intestinal stage in dogs) Incubation Period:Symptoms may develop months to years after ingestion of ... Read more
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Hymenolepis nana (Dwarf Tapeworm)
Hymenolepis nana (commonly referred to as the dwarf tapeworm) Hymenolepis nana Details: Type:Helminth (parasitic tapeworm) Category:Intestinal cestode Transmission Type:Fecal-oral (direct egg ingestion), autoinfection possible Primary Target Area:Small intestine Lifecycle Form:Egg (infective stage), cysticercoid larva (intestinal stage), adult tapeworm Incubation Period:Adult worms typically develop within 2 to 4 weeks after ingestion of infective eggs. Transmission: Hymenolepis ... Read more
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Diphyllobothrium latum (Fish Tapeworm)
Diphyllobothrium latum (commonly referred to as the fish tapeworm) Diphyllobothrium latum Details: Type:Helminth (parasitic tapeworm) Category:Intestinal cestode Transmission Type:Foodborne (consumption of raw or undercooked freshwater fish) Primary Target Area:Small intestine Lifecycle Form:Plerocercoid larva (infective stage in fish), adult tapeworm (intestinal stage in humans) Incubation Period:Adult worms typically develop within 3 to 6 weeks after ingestion ... Read more
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Taenia solium (Pork Tapeworm)
Taenia solium (commonly referred to as the pork tapeworm) Taenia solium Details: Type:Helminth (parasitic tapeworm) Category:Intestinal cestode (with potential tissue involvement) Transmission Type:Foodborne (undercooked pork), fecal-oral (egg ingestion) Primary Target Area:Small intestine (adult worm stage), muscles, brain, eyes (larval cyst stage) Lifecycle Form:Cysticercus (larval stage in pigs and sometimes humans), adult tapeworm (intestinal stage in ... Read more
Taenia saginata (Beef Tapeworm)
Taenia saginata (commonly referred to as the beef tapeworm) Taenia saginata Details: Type:Helminth (parasitic tapeworm) Category:Intestinal cestode Transmission Type:Foodborne (consumption of undercooked beef) Primary Target Area:Small intestine Lifecycle Form:Cysticercus (larval stage in cattle, infective to humans), adult tapeworm (intestinal stage in humans) Incubation Period:Adult worms typically develop within 8 to 12 weeks after ingestion of ... Read more
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Dracunculus medinensis
Dracunculus medinensis (commonly referred to as Guinea worm) Dracunculus medinensis Details: Type:Helminth (parasitic roundworm) Category:Tissue nematode Transmission Type:Waterborne (ingestion of contaminated water) Primary Target Area:Subcutaneous tissue (usually lower limbs) Lifecycle Form:Larvae (infective stage inside water fleas), adult worm (subcutaneous tissue stage) Incubation Period:Symptoms typically appear about 10 to 14 months after ingestion of contaminated water. ... Read more
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Onchocerca volvulus
Onchocerca volvulus (commonly referred to as the river blindness parasite) Onchocerca volvulus Details: Type:Helminth (parasitic roundworm) Category:Filarial nematode (tissue-dwelling parasite) Transmission Type:Vector-borne (blackfly transmission) Primary Target Area:Skin and eyes Lifecycle Form:Microfilariae (larval stage in skin and eyes), adult worm (subcutaneous nodules) Incubation Period:Symptoms may take months to years to develop after infection. Transmission: Onchocerca volvulus ... Read more
Frequently Asked Questions
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