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Flashcards in Nematodes Deck (89)
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What is the most important group?

Nematodes

1

Where can nematodes be found?

In many different organs in the body

2

What do adults look like?

Elongated and cylindrical

3

What type of worm is a ancylostoma caninum?

Hookworm

4

How long do adult ancylostoma caninum get?

1.5cm

5

What do ancylostoma caninum eggs look like?

Oval with thin shells and multiple cell clusters

6

What are four things ancylostoma caninum cause?

Anemia, diarrhea, malabsorption, cutaneous larva migrans

7

How can you diagnose ancylostoma caninum?

Eggs in fecal flotation

8

How do you treat ancylostoma caninum?

Treat infected dogs and remove fences

9

What is cutaneous larva migrans?

Skin inflammation caused by a migrating roundworm larva

10

What are three parasites that can cause cutaneous larva migrans?

Ancylostoma, unvinaria, strongyloids

11

What will humans show with cutaneous larva migrans?

Itchy, raised skin lesion that follows a serpentine pattern

12

What will animals exhibit with cutaneous larva migrans?

Anemia, diarrhea, malabsorption in puppies

13

What is the incubation period with parasites with cutaneous larva migrans?

2-3 days

14

Do cutaneous larva migrants have a mortality rate?

No

15

How is cutaneous larva migrants transmitted?

Skin contact w/infective larva in soil contaminated with dog and cat feces

16

How do you doagnose cutaneous larva migrans?

Syndrome, history of exposure

17

How are cutaneous larva migrans treated?

Antiparasitics, antiprotons, antibiotics

18

How do you control and prevent cutaneous larva migrans? 3

Regular deworming of dogs and cats, prohibition of dogs and cats on playgrounds and beaches, wear protective clothing when in contact with potentially contaminated soil

19

What is a common hookworm in dogs?

Ancylostoma caninum

20

What is a common hookworm in both dogs and cats?

Unconaria stenocephala

21

What type of worm is toxicara canis?

Roundworm ascarid

22

How big do toxicara canis get?

10-18 cm

23

What do toxicara canis eggs look like?

Round with a thick pitted shell

24

Toxicara infects a high percentage of what animal?

Puppies

25

What animal will die of toxicara canis?

2-3 week old puppies

26

Why do puppies for of toxicara canis?

Lung damage

27

What are three symptoms of toxicara canis?

Vomiting, diarrhea, visceral larva migrans

28

How do you diagnose toxicara canis? 2

Eggs in fevers, worms in vomit

29

How do you control toxicara canis?

Treat infected, remove feces

30

What does visceral larva migrans do?

Damage to the body's internal organs

31

What type of parasite does visceral larva migrans?

Roundworm larva

32

What are three specific parasites that do visceral larva migrans?

Toxicara canis, toxicara Cato, baylisacaris procyonis

33

What are symptoms of visceral larva migrans in humans? 6

A symptomatic or mild: fever, cough, skin rash, abdominal pain, CNS abnormalities, ocular disease

34

What are three symptoms of visceral larva migrans in animals?

Malnourishment, vomiting, diarrhea

35

What is the incubation period for visceral larva migrans?

Weeks too this

36

What is the mortality rate for visceral larva migrans?

Low

37

Where does visceral larva migrans occur?

Warm moist climates

38

How are visceral larva migrans transmitted?

Ingestion of worm eggs

39

What are three ways to diagnose visceral larva migrans?

CBC, Elisa, or serology

40

What is the treatment for visceral larval migrans?

Antoparasitics

41

How do you control and prevent visceral larva migrans? 4

Personal hygiene, regular deworming, prevent contamination of soil, keep children from eating dirty things or dirt

42

What is a roundworm for dogs? 3

Toxicara canis, toxicaris leonina, baylisacaris procyonis

43

What are two round worms of cats?

Toxicara cati, toxascaris leonina

44

What is a roundworm in raccoons?

Baylisacaris procyonis

45

What type of worm is a trichuris vulpis?

Whip worm

46

How big do trichuris vulpis get?

4.5-7.5 cm

47

What does trichuris vulpis look like?

Thin anterior, thick posterior

48

What do trichuris vulpis eggs look like?

Barrel shaped w transparent plugs at each end

49

How do you diagnose trichuris vulpis?

Eggs in fences

50

How do you control trichuris vulpis?

Treat dogs and rove feces

51

What is the prepatent period of trichuris vulpis?

3 months

52

What is dirofilaria immitus?

Heartworm

53

How big does dirofilarious get?

15-30cm

54

Does dirofilaria immitus have eggs we see?

No, just microfilaria

55

What does dirofilaria do?

Adults obstruct the heart valves and blood vessels

56

What is the prepatent period of dirofilaria immitus?

6 months

57

How do you diagnose dirofilaria immitus? 6

Microfilaria in blood smer, hematocrit tube,knots test, filter test, antigen test, antibody test

58

How do you control heart worm?

Preventative drug treatment, treat infected dogs

59

What are strongylus vulgaris?

Large strongyles

60

How big do strongylus vulgaris get?

1.5-2.5cm

61

What does strongylus vulgaris eggs look like?

Oval with thin she'll and multiple cell cluster in the center

62

What animal will strongylus vulgaris affect?

Horses

63

What are three symptoms of strongylus vulgaris?

In thriftiness, anemia, colic

64

How do you diagnose strongylus vulgaris?

Eggs and larva in feces

65

How do you control strongylus vulgaris? 2

Feed horse off ground and treat infected horses

66

What is pcyuris equi?

Pinworm

67

How big does oxyuris equi get?

1-15cm long

68

What does oxyuris equi eggs look like?

Oval with a transparent plug at one end

69

What is a symptom of oxyuris equi?

Perianal irritation

70

How is oxyuris equi diagnoses? 2

Eggs in feces/perinatal area

71

How do you control oxyuris equi?

Treat infected horses

72

What is the prepatent period for oxyuris equi?

5 months

73

What is ostertagia ostertagi?

Stomach worm in cows

74

How big does ostertagia ostertagi get?

5-10 mm long

75

What does ostertagia ostertagi eggs look like?

Oval with thin she'll and multiple cell cluster in the center

76

What is the prepatent period for ostertagia ostertagi?

16-23 days

77

What does ostertagia ostertagi cause? 2

Weight loss and diarrhea

78

How do you diagnose ostertagia ostertagi?

Eggs in feces

79

How can you control ostertagia ostertagi?

Pasture roar action and treat infected animals

80

What is trichinosis?

Parasitic disease aquired by eating inadequately cooled infected meat

81

What aides trichinosis?

Trichinosis spiralis

82

What are human symptoms of trichinosis? 7

A symptomatic to mild fever, muscle pain, swollen eyelids, diarrhea, ocular pain and hemorrhage, CNS abnormalities, cardiac abnormalities

83

What are animal symptoms of trichinosis?

Sub clinical

84

What is the incubation period for trichinosis?

5-15 day's

85

How is trichinosis transmitted?

Eating raw or undercooked infected meat

86

What are three ways to diagnose trichinosis?

Syndrome, serology, muscle biopsy

87

How do you treat trichinosis? 2

Antiparasitics and anti inflammatories

88

How can you control trichinosis?

Cook meat or free for 20 days
Cool garbage fed to swine
Control rodents in swine rearing ops.