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VT 266 Clin Path & Parasitology > Nematode Parasites > Flashcards

Nematode Parasites Flashcards

1
Q

Ancylostoma caninum egg appearance

A

Thin shells & multiple cell clusters

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2
Q

Ancylostoma caninum transmission

A

Perinatal

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3
Q

Ancylostoma caninum diagnosed

A

Fecal Flotation

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4
Q

Cutaneous Larva Migrans is?

A

Skin inflammation caused by a migrating roundworm larva

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5
Q

Cutaneous Larva Migrans zoonotic?

A

Yes

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6
Q

Cutaneous Larva Migrans diagnosis

A

Syndrome & history of exposure

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7
Q

Toxocara canis egg appearance

A

Round with a thick pitted shell

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8
Q

Toxocara canis lifecycle

A

Visceral migration occurs in pups less than 3 months old.
Dormancy occurs in older dogs
Mobilization to the uterus is seen in the last trimester of pregnancy

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9
Q

Toxocara canis definitive host

A

Dogs

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10
Q

Toxocara canis transmission

A

Transplacental & Transmammary

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11
Q

Toxocara canis diagnosis

A

Eggs in feces - sometimes adult worms
adult worms in vomit

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12
Q

Toxocara canis is common in?

A

Puppies & Kitties

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13
Q

Visceral Larva Migrans is?

A

Damage to the body’s internal organs that is caused by a migrating roundworm larva

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14
Q

Visceral Larva Migrans causative parasites?

A

Toxocara canis
Toxocara cati
Baylisascaris procyonis

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15
Q

Visceral Larva Migrans zoonotic?

A

Yes

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16
Q

Visceral Larva Migrans transmission

A

Ingestion of infective worm eggs generally caused by ingesting infected fecal matter

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17
Q

Visceral Larva Migrans incubation period?

A

Weeks to months

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18
Q

Visceral Larva Migrans Diagnosis?

A

CBC
Serology
ELISA Test

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19
Q

Trichuris vulpis eggs appearance

A

Barrel shaped with transparent plugs (operculum) at each end

20
Q

Trichuris vulpis diagnosis

A

Eggs in the feces

21
Q

Dirofilaria immitis egg appearance

A

No eggs, microscopic microfilaria produced

22
Q

Dirofilaria immitis life cycle

A

Adults live in the right ventricle of the heart & the pulmonary artery

23
Q

Dirofilaria immitis clinical disease is observed?

A

9-10 months after dog is infected

24
Q

Dirofilaria immitis diagnosis

A

Microfilaria in blood
- Blood smear
- Microhematocrit Tube
- Knitts Test
- Filter Test
- Antibody Test

25
Q

Strongylus vulgaris egg appearance

A

Oval with a thin shell & multiple cell clusters in the center

26
Q

Strongylus vulgaris diagnosis

A

Eggs & larva in feces
Larva can be found in the feces using the Baermann Technique

27
Q

Strongyloidea refers to?

A

A superfamily of parasites that produce strongyle type eggs

28
Q

Strongylus vulgaris adults live where in the body?

A

Adults lives in the colon & cecum
Larva migrate through walls of the cranial mesenteric artery leading to pain, aneurysm, & infarction

29
Q

Strongylus vulgaris clinical signs

A

Unthriftiness
Anemia
Colic

30
Q

Strongylus vulgaris prevention

A

Feed horses off the ground

31
Q

Dirofilaria immitis intermediate host

A

Mosquito

32
Q

Strongylus vulgaris control

A

Total Egg counts on the pasture to know if you need to rotate the animals out of the pasture

33
Q

Oxyuris equi egg appearance

A

Eggs are oval with a transparent plug at one pole

34
Q

Oxyuris equi definitive host?

A

Horses

35
Q

Oxyuris equi diagnosis

A

Eggs in feces & around perianal area
- Use scotch tape around the perianal area as the nematodes the leave anus generally at night to lay their eggs around the anal opening in the fur you will trap them in the tape
- Fecal Float

36
Q

Ostertagia ostertagi egg appearance

A

Oval with a think shell multiple cell clusters in the center
*Typical Trichostrongyles type egg

37
Q

Ostertagia ostertagi is diagnosed how?

A

Eggs in feces - Fecal Float

38
Q

Ostertagia ostertagi control/prevention options?

A

McMaster Egg Count to check pasture parasite load - pasture rotation

39
Q

Trichostrongyloidea refers to?

A

A superfamily of parasites that produce Trichostrongyle-type eggs

40
Q

Ostertagia ostertagi clinical signs/symptoms

A

Weightloss & Diarrhea

41
Q

Trichinella spiralis & Trichinella spp causes what disease?

A

Trichinosis

42
Q

Trichinosis refers to?

A

A parasitic disease acquired by eating inadequately cooked infected meat

43
Q

Trichinosis incubation period?

A

5-15 days

44
Q

Trichinosis is transmitted by?

A

Ingestion of raw or undercooked meat containing infected larva

45
Q

Trichinosis is diagnosed how?

A

Syndrome
Serology
Muscle Biospy

46
Q

Trichinosis control & prevention tips?

A

Cook meat well
Freeze meat for at least 20 days
Cook garbage prior to feeding it to swine
Control rodents in swine rearing operations

VT 266 Clin Path & Parasitology (19 decks)

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