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yale residency - rabbits, guinea pigs, misc. rodents > 15. Parasitic Diseases of Guinea Pigs and Hamsters > Flashcards

15. Parasitic Diseases of Guinea Pigs and Hamsters Flashcards

1
Q

C/S of Eimeria caviae in GP

A

Diarrhea in weanlings (adults usually asyptomatic)
Lethargy, anorexia
Mortality rates low

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2
Q

Dx of Eimeria caviae in GP

A

Fecal flotation

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3
Q

E. cuniculi C/S in guinea pigs

A

None in GP

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4
Q

Histo lesions of E. cuniculi in GP

A

Granulomas/necrosis of brain and kidney

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5
Q

Toxoplasma gondii GP C/S

A

Rare in GPs. Infections are subclinical.
Vulvar bleeding and abortion
Encephalitis

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6
Q

Toxo transmission in GP

A

Ingestion of material contaminated with oocysts from Felidae

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7
Q

Cryptosporidium wrairi in GP C/S

A

Most common in young animals. Subclinical infection common

Weight loss, diarrhea, death

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8
Q

Tx of Crypto wrairi in GP

A

None

Control by strict sanitation

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9
Q

Balantidium caviae C/S in GP

A

Nonpathogenic

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10
Q

B. caviae pathogenesis in Gp

A

Inhabits cecum

Trophozoites may be opportunistic pathogens in bacterial enteropathies.

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11
Q

Klossiella cobayae in GP - has tropism for which tissue?

A

Kidneys

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12
Q

Klossiella cobayae transmission in GP

A

Contact with urine

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13
Q

Giardia duodenalis in GP C/S

A

Rarely causes C/S

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14
Q

Pathogenesis of Giardia duodenalis in GP

A

Mild inflammatory lesions of SI

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15
Q

Tx of Giardia duodenalis in GP

A

Metronidazole and fenbendazole

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16
Q

What kind of worm is Parasidoptera uncinata (GP)?

A

Nematode, only common helminth in GP

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17
Q

Where does Parasidoptera infect?

A

Cecal worm

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18
Q

Parasidoptera life cycle length

A

65 days

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19
Q

C/S of Parasidoptera

A

Usually asymptomatic, but c/s can occur with heavy infestations
Weight loss, debilitation, diarrhea

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20
Q

Parasidoptera tx

A

Piperazine and ivermectin

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21
Q

G pigs are what kind of host for Baylisascaris?

A

Paratenic host

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22
Q

GP trematode sp (2)

A

Fasciola hepatica

Fasciola gigantica

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23
Q

C/S of GP trematodes

A

Anorexia, debilitation, death

24
Q

How are GP trematodes transmitted?

A

GP exposed to cercariae encysted on vegetation

25
Q

GP trematodes live where?

A

Liver

26
Q

Two most common GP mites

A

Chirodiscoides caviae

Trixacarus caviae

27
Q

What kind of mite is Chirodiscoides caviae?

A

Nonburrowing fur mite

28
Q

Chirodiscoides caviae C/S. Where on the body are the heaviest infestations?

A

Usually asymptomatic

Heaviest infestations on posterior trunk

29
Q

Tx for GP mites

A

Ivermectin

30
Q

What kind of mite is Trixacarus caviae?

A

Burrowing sarcoptid mite

31
Q

C/S of Trixacarus caviae

A

Intense pruritus, dermatitis, alopecia, crusting, excoriation

32
Q

Distribution of Trixacarus caviae lesions

A

Shoulders

33
Q

Is Trixacarus cavaie zoonotic?

A

Can transiently infect human

34
Q

GP lice are in what suborder?

A

Mallophaga

35
Q

3 species of GP lice

A 
Gliricola porcelli (slender louse)
Gyropus ovalis (oval louse)
Trimenopon hispidum
36
Q

Most common GP louse

A

Gliricola porcelli

37
Q

Distribution of GP lice

A

Around ears and neck, on hair shafts

38
Q

Tx of GP lice

A

Ivermectin or pyrethrin

39
Q

Two spp of fleas in GPs

A 
Ctenociphalides felis (cat flea)
Nosopsyllus fasciatus (northern rat flea)
40
Q

5 protozoa in hamsters

A
  1. Spironucleus muris
  2. Cryptosporidia
  3. E. cuniculi
  4. Tritrichomonas muris
  5. Giardia muris
41
Q

Giardia C/S in hamsters

A

Emaciation and diarrhea in aged hamsters with concurrent amyloidosis

42
Q

5 sp of hamster pinworms

A 
Syphacia mesocriceti (Hamster pinworm)
Syphacia obvelata (mouse pinworm)
Syphacia muris (rat pinworm)
Syphacia cricteri
Dentostomella translucida
43
Q

C/S of hamster pinworm

A

None

44
Q

Tx of hamster pinworm

A

Ivermectin, benzimidazoles

45
Q

Where does Tricosomoides nasalis inhabit in the hamster?

A

Nasal mucosa

46
Q

Hymenolepis (rodentolepis) nana is what kind of worm?

A

Cestode

47
Q

Lifecycle of Rodentolepis nana

A

Direct or indirect

48
Q

C/S of Rodentolepis nana

A

Usually none. Obstruction possible.

49
Q

Tx of Rodentolepis nana

A

Niclosamide

50
Q

6 spp of hamster mites

A
  1. Demodex criceti
  2. Demodex aurati
  3. Demodex cricetuli
  4. Notoedres
  5. Ornithonyssus bacoti
  6. Spleorodens clethrionomys
51
Q

Demodex C/S in hamsters

A

Often asymptomatic. Dry, scaly skin reported

52
Q

Difference in distribution between D. criceti and D. aurati

A

D. criceti found in epidermal pits. D. aurati found in follicles and sebaceous glands.

53
Q

Tx of hamster demodicosis

A

Selenium sulfide shampoo, amitraz

54
Q

D. cricetuli infects which hamsters?

A

Armenian

55
Q

D. sinocricetuli infects which hamsters?

A

Chinese striped (Cricetulus griseus) and striped (Cricetulus barbarensis) hamsters

yale residency - rabbits, guinea pigs, misc. rodents (18 decks)

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