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100 Cards in this Set

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  • Back
Order of Crustaceans
Decapods
Any Trematode word
Fluke
The Final free swimming larval stage of a Trematode parasite
Cercariae
The encysted stage of a Trematode parasite
Metacercariae
The 1st larval stage of the Trematode parasite
Miracidium
Liver rot is the nickname for what Trematode parasite?
Fascioliasis
What is Fascioliasis also known as?
Sheep Liver Fluke
What are the identifying charateristics of fascioliasis?
flat, leaf shaped
What is the accidental host of Fascioliasis?
Humans
What are the reseviors or Fascioliasis?
Sheep, Cattle and snails of the family Lymnaeidae
What is the infectious agent for Sheep Liver Fluke?
Fasciola hepatica
What is the first intermediate for for Liver rot?
The snail for the family Lymnaeidae is the 1st intermediate host
In the life cycle of Fascioliasis, where does there cercariae encyst?
The cercariae encyst on vegetation
In the Life cycle of Sheep Liver Fluke, where does the worm reach sexual maturity?
The worm reaches sexual maturity in the bile ducts
What is the mode of transmission for liver rot?
Eating contaminated or uncooked aquatic plants (watercress)
What are the signs and symptoms of Fascioliasis?
Heptomegaly, biliary colic, RUQ pain, obstreuctive jaundice
Heptomegaly, RUQ pan, Biliary colic and obstructive jaundice are s/s of what trematode parasite?
Fascioliasis
How would you control Sheep Liver Fluke?
Drain the land, avoid use of sheep feces for fertilizer, Use molluscicides
What is the treatment for Liver rot?
Triclabendazole
What is Chinese Liver Fluke also known as?
Clonorchiasis
What is Oriental Liver Fluke also known as?
Clonorchiasis
What is a person with Clonorchiasis infected with?
Clonorchis sinensis
Which Trematode is flat, elongated, flabby and grey?
Clonorchis sinensis
What is the reservior of Clonorchiasis?
Humans, dogs, cats, swine
What is highly endemic in Southeast China
Chinese Liver Fluke
In Clonorchiasis, what hatches from the eggs and infects the 1st intermediate host?
Miracidium
With the Oriental Liver Fluke, where to Metacercariae excyst?
In the small intestine of the Definitive Host
With Clonorchiasis where does the immature worm migrate to?
The immature worm migrates to the bile duct of the liver
What is the mode of transmission for Clonorchiasis?
Eating raw or uncooked infected freshwater fish
What is the incubation period for Chinese Liver Fluke?
1 Month
What is the period of communicability for Clonorchiasis?
Up to 30 years
How would you diagnose a person with Oriental Liver Fluke?
Eggs in feces or Duodenal drainage fluids
To control the spread of Clonorchiasis, how would you treat freshwater fish?
Freeze fist at 14 degrees for 5 days or more
What medication would you use to treat Clonorchiasis?
Praziquantel (Biltricide)
What infectious agent causes Fasciolopsiasis?
Fasciollopsis buski
What is the largest Trematode of humans?
Fasciolopsiasis
What is the reservoir Fasciolopsiasis?
Humans, Swine, dogs
Where does Fasciolopsiasis asexually respoduce
It aseuxally reproduces in the snail producing cercariae
Where does the sexually mature fasciolopsiasis live?
The sexually mature adult lives in the host small intestine
How can I get Fasciolopsiasis?
Eating uncooking aquatic plants (water chestnuts, water bamboo)
What affects does Fasciolopsiasis have on the body?
Infection of the upper small intestine
What is the incubation period for Fasciolopsiasis?
3 months
Patient presents with Ulceration of the intestinal wall, Diarrhea alternating w/ constipation, acute intestinal obstruction and 20 days after infection, edema may appear on face/legs/abdominal walls ould suggest a diagnosis of what trematode parasite?
Fasciolopsiasis
How would you diagnose Fasciolopsiasis?
I.D. flukes or eggs in feces/I.D. worms in vomittus
How would you control Fasciolopsiasis?
Treat "Night soil"
Boil water plants
Keep swine from water plan gardens
Don't feed swine water plants
You identity fasciollopsis buski flukes in a patient's vomittus, what medication do you prescribe?
Praziquantitel?
Pulmonary distomiasis is another name for what?
Paragonimiasis
Lung Fluke disease can also be called what?
Paragonimiasis
What is the infectious agent for Paragonimiasis?
Paragonimus westermani
How can Pulmonary distomiasis be visually identified?
By its reddish brown color and spoon shape
What are the reservoirs for Lung Fluke Disease?
Humans, Swine, cats and dogs
With Paragonimiasis, what is the 1st intermediate host?
Snails
With Paragonimiasis, after eggs hatch, what is released?
Miracidium
With Pulmonary Distomiasis, what do cercariae infest?
Decapods the 2nd intermediate hosts
With Pulmonary Distomiasis, where do adult parasites live?
In the lungs of the hosts
What is the mode of transmission for Paragonimiasis?
Eating raw or undercooked infected freshwater crabs/crayfish
What part of the body does Paragonimiasis infect?
The lungs
What is the incubation period for Lung Fluke Disease?
6-10 weeks
How long can Paragonimus westermani eggs expelled in feces stay communicable?
up to 20 years
What whould you include in your med threat brief to prevent troops from getting Pulmonary distomiasis?
Thoroughly cook crustaceans and use molluscicides
What medication would you use to treat a patient diagnosed with Lung Fluke Disease?
Praziquantel (Biltricide)
Schistosomiasis can also be called?
Snail Fever or Bilharzia
What are the infectious agents for Schistsomiasis?
S. mansoni, S. japonicum, S. haematobium
What is unique that can be used to identify the infectious agent for Snail Fever?
The infectious agent have separate sexes and reside in pairs
Which Bilharzia infectious agent is found in Africa, Arabian Peninsula, and South Amercian Countries?
Schistosoma mansoni
Which infectious agent of Snail Fever can be found in Asian countries?
Schistosoma japonicum
Where is the infectious agent Schistosoma haematobium found?
Africa and Middle East
In the Life Cycle of Schistosomiasis, after the cercariae leaves the snail, where does it go?
It penetrates the skin of humans in water
What is the reservoir of Schistosoma japonicium?
Dogs, cats and domestic farm animals
In the Life Cycle of Schistosomiasis, after immature worms enter the bloodstream, where do they travel to?
They travel to veins near the bladder and intestines
In the life cycle of Schistosomiasis, where do worms reach sexual maturity?
Worms reach sexual maturity in the veins near the bladder and intestines
In the life cycle of Schistosomiasis, which sex produces eggs?
The female produces eggs
In the Life cycle of Schistosomiasis, what enters the bladder and intestines and is the only thing that exits the body?
Schistosoma eggs
Which infectious agent of Schistosomiasis has an intestinal pathogenicity?
S. masoni, S. japonicium
Which infectious agent of Schistosomiasis has a vesical pathogenicity?
S. haematobium
From time of cercarial pentration to mature adult is what developmental stage of Schistosomiasis?
1st Developmental Stage
Itching and mild rash appear right after exiting the water is what developmental stage of Schistosomiasis?
1st Developmental Stage
Heavy infections may have several of- low grade fever?malaise/urticaria is what developmental stage of Schistosomiasis?
1st Developmental Stage
2-3 weeks after infection, Katayama fever (chills & fever/bloody dirrhea) is what developmental stage of Schistosomiasis?
1st Developmental Stage
Period of active oviposition and egg excretion is what developmental stage of Schistosomiasis?
2nd Developmental Stage
Periodic hematuria occurs in what stage of Schistosomiasis?
2nd Stage
Painful Urination occurs in what stage of Schistosomiasis?
2nd Stage
Period of tissue response to the egg is what stage of Schistosomiasis?
3rd stage
Body starts to develop complications based on where the granulomas are occurs in what stage of Schistosomiasis?
3rd stage
Heptomegaly occurs in what stage of Schistosomiasis?
3rd stage
Genitourinary-lesions and urethral occlusion occurs in what stage of Schistosomiasis?
3rd stage
CNS-severe headache/convulsions ocurs in what stage of Schistosomiasis?
3rd stage
With Schistosomiasis, for how long can humans excrete eggs?
Humans can excrete eggs for ever 10 years
With Schistosomiasis, for how long can snails release cerariae?
Snails can release cercariae for up to 3 months
How would you diagnose Schistosomiasis in a patient in which whom you suspect has the parasite?
Identify eggs in feces, urine or by doing a biopsy
How do you control Schistosonomiasis?
Molluscicides

Avoid contact with contact with contaminated water
What medication would be prescribed to be patient who has schistosome eggs identified in her urine?
Pranziquantel (Biltricide)
What is the incubation period for Bilharzia?
2-6 weeks
What is the the infectious agent for Swimmers itch?
Larvae of certain schistosomesof birds and mammals
What does Swimmers itch occur?
Lake regions of the world (Great Lakes/California)
How is Swimmers itch controlled?
Avoid swimming in contaminated water; use molluscicides; vigorous washing of all skin after swimming
What is used to treat Swimmer's itch?
Antipuritic lotion; Antihistaminic lotion; Antimicrobial drugs to prevent secondary infection
Hepatomegaly or cirrhosis is the pathogenicity for what parasite?
Clorochiasis
Infection of the bile ducts cause irritation is pathogenicity for what parasite?
Clonorchiasis
Liver function is impaired, but the SGOT& SGPT are normal is the pathogenicity for what parasite?
Clonorchiais