Crypto, toxoplasm, besnoitiosis of cattle, sarcocystiosis

Question 1

What is the size of a Cryptosporidium oocyst?

Answer 1

5-8 microns

Question 2

How can we characterize the host specificity of Cryptosporidia baileyi?

Answer 2

Euryxenous

Question 3

What do the oocysts of Cryptosporidia contain?

Answer 3

4 sporozoites

Question 4

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

Answer 4

Liver

also brain

Question 5

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

Answer 5

Brain

also Liver

Question 6

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

Answer 6

With flotation

Question 7

Which animal species can be infected by Toxoplasma gondii?

Answer 7

Many mammals and birds

Question 8

How many sporocysts do the Toxoplasma oocysts have?

Answer 8

2

Question 9

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

Answer 9

Necrotic spots

Question 10

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

Answer 10

Polymerase chain reaction

Question 11

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

Answer 11

Cat

Question 12

What is the size of Toxoplasma cyst that contains tachyzoites?

Answer 12

20-100 microns

Question 13

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

Answer 13

Itching

What does- alopecia, skin thickening, skin wrinkling

Question 14

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

Answer 14

Sporulated

Question 15

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

Answer 15

Sporulated form with 2 sporocysts

Question 16

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

Answer 16

No clinical signs

Question 17

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

Answer 17

Sporocysts

Question 18

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

Answer 18

Subclinical

Question 19

What animals are susceptible for Besnoitia besnoiti?

Answer 19

More ssp of ruminants

Question 20

Which is the method used to detect Cryptosporidium?

Answer 20

Kinyuon staining

Question 21

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

Answer 21

IFAT staining

Question 22

Which genus has sporulated oocysts with 4 free sporozoites?

Answer 22

Cryptosporidium

Question 23

Which genus has sporulated oocysts without sporocysts?

Answer 23

Cryptosporidium

Question 24

What are the characteristics of Cryptosporidium meleagridis oocysts?

Answer 24

5 μm, spherical

Question 25

Which form is not characteristic of avian Cryptosporidiosis?

Answer 25

Hepatic form! | Has intestinal, resp and renal form

Question 26

Host range of Cryptosporidiosis?

Answer 26

Euryxenous (mammals and birds)

Question 27

Host range of Cryptosporidium baileyi?

Answer 27

Anseriform

Question 28

Life Cycle of Cryptosporidia parvum?

Answer 28

Homoxenous

Question 29

Which species of Cryptosporidium occurs in birds?

Answer 29

C. baileyi (galli and meleagridis also)

Question 30

Where is Cryptosporidium mainly found?

Answer 30

Small intestine | Abomasum for C.muris and C.andersoni

Question 31

Which bird species are susceptible for C. bailyei infection?

Answer 31

Many species

Question 32

What is the causative agent of Cryptosporidiosis in mammals?

Answer 32

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

Question 33

Which parasite are homoxenous but not host specific?

Answer 33

Cryptosporidium parvum

Question 34

What are the clinical signs for C. baileyi?

Answer 34

Dyspnoea and Diarrhoea | Also: coughing, sneezing, nasal discharge and conjunctivitis

Question 35

What are the characteristics of Cryptosporidium baileyi oocysts?

Answer 35

6-7 μm, oval

Question 36

What form of Cryptosporidium can be found in fresh faeces?

Answer 36

Oocysts containing 4 sporozoites

Question 37

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

Answer 37

Resp

Question 38

In which location will Cryptosporidium baileyi not establish?

Answer 38

Stomach | also liver and brain?

Question 39

Which is not true?

Answer 39

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

Question 40

Host range of Toxoplasmosis?

Answer 40

Cats, dogs, birds, humans and other mammals

Question 41

Which symptom does not occur during Toxoplasmosis infection in cats?

Answer 41

Abortion

Question 42

How can we characterize the life cycle of Toxoplasma gondii?

Answer 42

Facultative heteroxenous

Question 43

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

Answer 43

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

Question 44

What kind of host is the cat in Toxoplasma gondii?

Answer 44

Final host/definitive host

Question 45

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

Answer 45

1-2 weeks

Question 46

Which animals shed oocysts in Toxoplasmosis?

Answer 46

All species of cats as the definitive/final hosts

Question 47

What can be found in sporulated oocysts of Toxoplasmosis?

Answer 47

2 sporocysts each containing 4 sporozoites

Question 48

What is the patency period for Toxoplasmosis?

Answer 48

20 days

Question 49

Oocyst of Toxoplasma gondii is indistinguishable from that of?

Answer 49

Hammondia hammondi

Question 50

What is the size of Toxoplasma gondii cyst?

Answer 50

20-100 micometers

Question 51

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

Answer 51

In the rabbit

Question 52

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

Answer 52

CNS signs | also- pneumonia, anorexia and diarrhoea

Question 53

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

Answer 53

Sabin- Feldman method

Question 54

Besnoitia besnoiti species are?

Answer 54

Obligatory heteroxenous

Question 55

Which statement is not true for Besnoitia besnoiti?

Answer 55

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

Question 56

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

Answer 56

Final hosts- dog, cat, wild carnivores and man

Question 57

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

Answer 57

S. hirsuta

Question 58

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

Answer 58

S. gigantean

Question 59

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

Answer 59

Groups of merozoites or small schizonts

Question 60

Intestinal Sarcosporidiosis can occur in?

Answer 60

Dog, cat, wild carnivores and man

Question 61

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

Answer 61

S. gigantea (in sheep)

Question 62

Muscle sarcosporidiosis can be found in?

Answer 62

Sheep, cattle, swine, horse

Question 63

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

Answer 63

Cystozoites