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Para- Giraffe PQ's > Crypto, toxoplasm, besnoitiosis of cattle, sarcocystiosis > Flashcards

Crypto, toxoplasm, besnoitiosis of cattle, sarcocystiosis Flashcards

1
Q

What is the size of a Cryptosporidium oocyst?

A

5-8 microns

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2
Q

How can we characterize the host specificity of Cryptosporidia baileyi?

A

Euryxenous

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3
Q

What do the oocysts of Cryptosporidia contain?

A

4 sporozoites

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4
Q

What organ is never involved into C. baileyi infection of poultry?

A

Liver

also brain

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5
Q

Which organ is not involved during a C. Bailyei infection of Poultry?

A

Brain

also Liver

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6
Q

How do we detect usually the oocysts of Cryptosporidia in faeces?

A

With flotation

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7
Q

Which animal species can be infected by Toxoplasma gondii?

A

Many mammals and birds

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8
Q

How many sporocysts do the Toxoplasma oocysts have?

A

2

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9
Q

What kind of pathological signs can we see on the surface of placenta of aborted foetus by consequence of Toxoplasma infection?

A

Necrotic spots

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10
Q

What method is not applicable to detect antibodies against Toxoplasma infection?

A

Polymerase chain reaction

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11
Q

Which species of host of Toxoplasma do not abort their foetus during infection?

A

Cat

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12
Q

What is the size of Toxoplasma cyst that contains tachyzoites?

A

20-100 microns

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13
Q

What is the sign that does not appear in the chronic form of Besnoitiosis of cattle?

A

Itching

What does- alopecia, skin thickening, skin wrinkling

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14
Q

What type of Sarcocystis oocyst can be found in fresh faeces?

A

Sporulated

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15
Q

What type of Sarcocystis oocyst can be found in fresh faeces?

A

Sporulated form with 2 sporocysts

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16
Q

What is the usual consequence of Sarcocystis in final host animals?

A

No clinical signs

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17
Q

What can we usually detect in the faeces during Sarcocystiosis in definite host?

A

Sporocysts

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18
Q

What is the most frequent clinical form of Sarcocystiosis of the dog?

A

Subclinical

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19
Q

What animals are susceptible for Besnoitia besnoiti?

A

More ssp of ruminants

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20
Q

Which is the method used to detect Cryptosporidium?

A

Kinyuon staining

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21
Q

What method is not used to detect Toxoplasma tachyzoites during infection?

A

IFAT staining

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22
Q

Which genus has sporulated oocysts with 4 free sporozoites?

A

Cryptosporidium

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23
Q

Which genus has sporulated oocysts without sporocysts?

A

Cryptosporidium

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24
Q

What are the characteristics of Cryptosporidium meleagridis oocysts?

A

5 μm, spherical

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25
Q

Which form is not characteristic of avian Cryptosporidiosis?

A

Hepatic form!

Has intestinal, resp and renal form

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26
Q

Host range of Cryptosporidiosis?

A

Euryxenous (mammals and birds)

27
Q

Host range of Cryptosporidium baileyi?

A

Anseriform

28
Q

Life Cycle of Cryptosporidia parvum?

A

Homoxenous

29
Q

Which species of Cryptosporidium occurs in birds?

A

C. baileyi (galli and meleagridis also)

30
Q

Where is Cryptosporidium mainly found?

A

Small intestine

Abomasum for C.muris and C.andersoni

31
Q

Which bird species are susceptible for C. bailyei infection?

A

Many species

32
Q

What is the causative agent of Cryptosporidiosis in mammals?

A

C. muris

C. parvum, C. andersoni and C. bovis, C. felis, C. canis, C. hominis

33
Q

Which parasite are homoxenous but not host specific?

A

Cryptosporidium parvum

34
Q

What are the clinical signs for C. baileyi?

A

Dyspnoea and Diarrhoea

Also: coughing, sneezing, nasal discharge and conjunctivitis

35
Q

What are the characteristics of Cryptosporidium baileyi oocysts?

A

6-7 μm, oval

36
Q

What form of Cryptosporidium can be found in fresh faeces?

A

Oocysts containing 4 sporozoites

37
Q

Which form of Cryptosporidiosis has the most severe outcome in broilers?

A

Resp

38
Q

In which location will Cryptosporidium baileyi not establish?

A

Stomach

also liver and brain?

39
Q

Which is not true?

A

Toxoplasma oocysts are 5-8 μm (they are 10x12 μm)

40
Q

Host range of Toxoplasmosis?

A

Cats, dogs, birds, humans and other mammals

41
Q

Which symptom does not occur during Toxoplasmosis infection in cats?

A

Abortion

42
Q

How can we characterize the life cycle of Toxoplasma gondii?

A

Facultative heteroxenous

43
Q

In which animal can we find Toxoplasma oocysts in the faeces?

A

Cats

Maximum 20 days (I think the is the praepatent period) and only lasts 1-2 weeks

44
Q

What kind of host is the cat in Toxoplasma gondii?

A

Final host/definitive host

45
Q

For how long does a cat pass Toxoplasma oocysts in the faeces?

A

1-2 weeks

46
Q

Which animals shed oocysts in Toxoplasmosis?

A

All species of cats as the definitive/final hosts

47
Q

What can be found in sporulated oocysts of Toxoplasmosis?

A

2 sporocysts each containing 4 sporozoites

48
Q

What is the patency period for Toxoplasmosis?

A

20 days

49
Q

Oocyst of Toxoplasma gondii is indistinguishable from that of?

A

Hammondia hammondi

50
Q

What is the size of Toxoplasma gondii cyst?

A

20-100 micometers

51
Q

In which species does T. gondii cause necrotic foci and granuloma in liver, spleen, lungs and brain?

A

In the rabbit

52
Q

Which clinical sign can be seen in dogs infected by Toxoplasma?

A

CNS signs

also- pneumonia, anorexia and diarrhoea

53
Q

What method is not used to detect Toxoplasma tachyzoites during infection?

A

Sabin- Feldman method

54
Q

Besnoitia besnoiti species are?

A

Obligatory heteroxenous

55
Q

Which statement is not true for Besnoitia besnoiti?

A

It ́s most important intermediate host is the cat. It can be transmitted by vectors, the cyst is visible to the naked eye, develops in the endothel

56
Q

What type of host of Sarcocystiosis can give the intestinal form of infection?

A

Final hosts- dog, cat, wild carnivores and man

57
Q

What is the Sarcocystiosis species of cattle among these following ones?

A

S. hirsuta

58
Q

What is the Sacrocystiosis species of sheep among these following ones?

A

S. gigantean

59
Q

What can be found in sections of vascular endothelium of heart, kidney etc. in Sarcosporidiosis?

A

Groups of merozoites or small schizonts

60
Q

Intestinal Sarcosporidiosis can occur in?

A

Dog, cat, wild carnivores and man

61
Q

Wheat-pea sized and greyish-yellow sarcocysts of … are found in the wall of the esophagus

A

S. gigantea (in sheep)

62
Q

Muscle sarcosporidiosis can be found in?

A

Sheep, cattle, swine, horse

63
Q

What does the human need to ingest to get infected with Sarcocystiosis?

A

Cystozoites

Para- Giraffe PQ's (18 decks)

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