katelizgrant's version from 2015-11-18 02:25


Question Answer
Paragonimus westermanilung fluke, definite host is humans and other mammals, adult fluke lives in the bronchioles of humans and other animals.
Schistosomacauses schistosomiasis, rash, fever, itching, abdominal pain, diarrhea, finally eggs lodging in tissue producting damaging granulomas which can block blood flow causing portal hypertension, live in the mesenteric veins and produce eggs that migrate to the liver, spleen and intestinal wall. Transmission = raw or undercooked fish, swimming in contaminated water. 400,000 immigrants in US and 200 million people in Asia, Africa, South America, and the Caribbean
Taenia saginatabeef tapeworm, "measly beef", upon ingestion of the proglottids by cattle, the larvae hatch and bore through the intestinal wall, migrate to muscle and encyst as cysticerci
Echinococcus granulosustransmitted by canines, causes hydatid cyst disease, "brood capsules" which contain scoleces, infect liver/lungs. Rupture of cysts can cause severe apnaphylaxis
Taenia soliumpork tapeworm, humans are the only known definitive host, we are also intermediate host. ONLY tapeworm to cysticercosis and neurocysticercosis, rupture of cysts = anaphylaxis and death, surgical aspiration is recommended in the brain
Diphyllobothrium latumfish tapeworm, trasmitted by eating undercooked fish, largest tapeworm that infects humans, intermediate hosts are capecods and fishes, causes megaloblastic anemia, paraiste preferentially takes up vitamin B12.
Ascaris lumbricoidesingested eggs from soil, male and female forms, infect small intestine of animals and humans
Enterobius vermicularispinworms, 10mm in length, entire life cycle is in humans, oldest demonstrated infectious agent of humans at 10,000 years old, deposits eggs on perianal skin
Necator americanusadult hookworm, lives in small intestine, burrows through skin of feet, organism then gets into lymph and blood, gets coughed up and the sputum is swallowed enabling the organism to get into the intestines - has hook at one end that digests skin
Trichinella spiraliscauses trichinosis, acquired from eating encysted larvae in pork or bear meat, develops on the intestine then encysts in the muscle, mortality is 10% if CNS is involved

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