Major Helminths of Humans
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| Q: Disease caused by Enterobius vermicularis (pinworm)… | A: Enterobiasis which affects 500 million people worldwide and 40 million Americans.
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| Q: Hosts of Enterobius vermicularis… | A: Humans are both the definitive and intermediate host.
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| Q: Symptoms of Enterobius vermicularis… | A: Nocturnal perianal and vulvar pruritus (itching).
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| Q: Disease caused by Trichinella spiralis… | A: Trichinosis (spread by eating raw pork) with 150 to 300 thousand new infections annually in the USA.
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| Q: Hosts of Trichinella spiralis… | A: Intermediate host is rats, pigs, and humans; Definitive host is human.
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| Q: Necator americanus & Ancylostoma duodenale are both what type of worm? | A: Hookworm.
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| Q: Hosts of Necator americanus & Ancylostoma duodenale… | A: Humans are both intermediate & definitive host.
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| Q: Iron deficiency anemia is linked to which helminths? | A: Necator americanus & Ancylostoma duodenale (hookworms).
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| Q: Hosts for Strongyloides stercoralis (thread worm)… | A: Humans are both intermediate & definitive host.
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| Q: Hosts for Ascaris lumbricoides… | A: Humans are both intermediate & definitive host.
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| Q: What is the most common helminth infection? | A: Ascaris lumbricoides which causes ascariasis in more than 1 billion people worldwide.
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| Q: Hosts for Wuchereria bancrofti… | A: Humans & mosquitoes (Culex, Aedes, & Anopheles).
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| Q: Disease caused by Wuchereria bancrofti… | A: Filariasis.
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| Q: Hosts for Trichuris trichuris (whipworm)… | A: Humans are both intermediate & definitive host.
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| Q: Hosts for Schistosoma haematobium… | A: Snails & humans.
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| Q: Disease of Schistosoma haematobium (blood fluke)… | A: Schistosomiasis, Bilharzia, “swimmer’s itch” (common in Nile Valley, Africa, & Asia Minor.
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| Q: Hosts for Schistosoma japonicum… | A: Snails & humans.
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| Q: Disease of Schistosoma japonicum… | A: Schistosomiasis, Bilharzia (common in China, Japan, Philippines, & Indonesia).
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| Q: Hosts for Schistosoma mansoni… | A: Snails & humans.
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| Q: Disease of Schistosoma mansoni… | A: Schistosomiasis, Bilharzia (common in Africa, Saudi Arabia, Madagascar, Brazil, Venezuela, West Indies, & Puerto Rico).
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| Q: Hosts for Fasciola hepatica… | A: Humans, snails, fish, sheep, cattle.
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| Q: Hosts for Taenia saginata… | A: Intermediate host is beef; definitive host is humans.
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| Q: Hosts for Taenia solium… | A: Intermediate host is pigs; definitive host is humans.
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| Q: Macrocytic megaloblastic anemia (pernicious anemia) is associated with what? | A: Diphyllobothrium latum (fish tapeworm).
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| Q: Hosts of Diphyllobothrium latum… | A: Intermediate host is fish; definitive host is humans.
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| Q: Vitamin B12 deficiency is associated with which helminth? | A: Diphyllobothrium latum (fish tapeworm).
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| Q: Hosts for Echinococcus granulosus… | A: Dogs & sheep are intermediate host; Humans are definitive host.
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| Q: Name that worm… Enterobius vermicularis | A: Pinworm.
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| Q: Name that worm… Trichuris trichuris | A: Whipworm.
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| Q: Name that worm… Necator americanus & Ancylostoma duodenale | A: Hookworms.
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| Q: Name that worm… Strongyloides stercoralis | A: Threadworm.
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| Q: Name that worm… Ascaris lumbricoides | A: Ascaris.
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| Q: Name that worm… Trichinella spiralis | A: Trichinella.
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| Q: Name that worm… Wuchereria bancrofti | A: Filaria.
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| Q: Name that fluke… Schistosomes | A: Blood fluke.
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| Q: Name that fluke… Fasciola, Clonorchis, Opisthorchis | A: Liver flukes.
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| Q: Name that fluke… Fasciolopsis, Echinostoma | A: Intestinal flukes.
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| Q: Name that fluke… Paragonimus | A: Lung flukes
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| Q: Why you shouldn’t eat sushi… | A: Diphyllobothrium latum.
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