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Test 2 Parasites - Part 3
nematodes
60
Biology
Undergraduate 2
02/24/2013

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Term
Trichinella spiralis common name
Definition
pork worm, trichina worm
Term
Trichinella spiralis disease name
Definition
trichinosis
Term
Trichinella spiralis zoonosis?
Definition
yes
Term
FDA guidelines for Trichinella spiralis control
Definition
-illegal to feed meat to pigs
-standards for pork industry
Term
stichocytes
Definition
boxy cells at the anterior part of the worm that form a stichosome
Term
mode of transmission of Trichinella spiralis
Definition
ingesting undercooked meat contaminated with larvae in nurse cells
Term
preferred locations of Trichinella spiralis in the body
Definition
well-oxygenated muscles such as the eyes, diaphragm, and skeletal muscles
Term
clinical signs of trichinosis
Definition
-determined by larvae burden
-food poisoning like symptoms (1 day)
-mylagia, fever, peri-orbital edema, extremely profound eosinophilia (7 days)
Term
diagnosis of trichinosis
Definition
-muscle biopsy looking for larvae
-count number of larvae per gram of muscle
- more than five larvae per gram usually means death
Term
species related to Trichinella spiralis
Definition
Trichinella nativa
Term
whipworm
Definition
Trichuris trichiura
Term
disease caused by Trichuris trichiura
Definition
trichuriasis
Term
mode of transmission for Trichuris trichiura
Definition
eggs ingested from feces
Term
clinical signs of trichuriasis
Definition
-severe mucosal inflammation
-hypochronic anemia
-dysentery
-rectal prolapse
-possible death
Term
diagnosis of trichuriasis
Definition
look for eggs in feces
Term
treatment of trichuriasis
Definition
mebendazole
Term
hookworms and zoonosis?
Definition
no
Term
species of hookworm important in the US
Definition
Necatur americanus
Term
species of hookworm found outside of the US
Definition
Ancylostoma duodenale
Term
routes of infection of hookworm
Definition
filariform larvae penetrate the skin
Term
infections stage of hookworm
Definition
filariform or L3 larvae
Term
location of hookworm adults in the body
Definition
small intestine
Term
clinical signs of hookworm infection
Definition
-dry cough, burning in chest
-eosinophilia
-profound anemia
-possible rash at site of penetration
-geophagy
Term
diagnosis of hookworm infection
Definition
look for eggs in feces
Term
treatment of hookworm
Definition
mebendazole
Term
condition caused by dog hookworm
Definition
creeping eruption
Term
thread worm
Definition
Strongyloides stercoralis
Term
geographical location of Strongyloides stercoralis
Definition
worldwide, but pref. warm climates
Term
nematode that can be entirely free-living
Definition
Strongyloides stercoralis
Term
diagnostic stage of Strongyloides sterocoralis
Definition
L1 larvae (rhabditiform larvae) in feces
Term
disease caused by Strongyloides stercoralis
Definition
strongyloidiasis
Term
clinical signs of strongyloidiasis
Definition
-diarrhea
-high chance of secondary bacterial infection
-blood loss
-can be asymptomatic if worm burden is low
Term
treatment for strongyloidiasis
Definition
mebendazole
Term
the large intestinal roundworm of humans
Definition
Ascaris lumbricoides
Term
infective stage of Ascaris lumbricoides
Definition
egg
Term
disease caused by Ascaris lumbricoides
Definition
ascariasis
Term
condition caused by Ascaris lumbricoides molting in the lungs
Definition
ascaris pneumonitis
Term
clinical signs of ascaris pneumonitis
Definition
-coughing
-burning
-wheezing
Term
clinical signs of ascariasis
Definition
-abdominal pain
-undigested food in feces
-possible complete obstruction and ileus
Term
diagnosis of ascariasis
Definition
eggs in feces
Term
treatment of ascariasis
Definition
mebendazole
Term
condition caused by animal ascarids that accidentally infect humans
Definition
visceral larval migrans
Term
ascarid found in dogs
Definition
Toxocara canis
Term
ascarid found in cats
Definition
Toxocara cati
Term
ascarid found in raccoons
Definition
Bayliscaris procyonis
Term
clinical signs of visceral larval migrans
Definition
depends on area infected
-lung = asthma-like symptoms
-eyes = decreased vision
-brain, depends on location in brain
Term
diagnosis of visceral larval migrans
Definition
clinical signs + ELISA
Term
treatment of visceral larval migrans
Definition
mebendazole
Term
pin worm - "seat worm"
Definition
Enterobius vermicularis
Term
disease caused by Enterobius vermicularis
Definition
enterobiasis
Term
geographical location of Enterobius vermicularis
Definition
worldwide
Term
is Enterobius vermicularis a zoonosis?
Definition
no
Term
clinical signs of enterobiasis
Definition
-intense itching in the anal area
-hyperactivity
-insomnia (mainly due to discomfort)
Term
diagnosis of enterobiasis
Definition
scotch tape test
Term
treatment of enterobiasis
Definition
mebendazole
Term
"guinea worm" or "fiery serpent"
Definition
Dracunculus medinensis
Term
disease caused by Dracunculus medinensis
Definition
dracunculiasis
Term
intermediate host for Dracunculus medinensis
Definition
copepod
Term
clinical signs of dracunculiasis
Definition
-intense nausea
-weakness
-intense pain
Term
drancucliasis eradication program
Definition
-cloth filters for water
-education
-reporting of every case
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