Para Lab 5 PQs

Question 1

What is the size of a Cryptosporidium oocyst?

Answer 1

5 - 8 microns

Question 2

Which genus has sporulated oocysts with 4 free sporozoites?

Answer 2

Cryptosporidium

Question 3

Which genus has sporulated oocysts without sporocysts?

Answer 3

Cryptosporidium

Question 4

What are the characteristics of Cryptosporidium meleagridis oocysts?

Answer 4

5 µm, spherical

Question 5

Which form is not characteristic of avian Cryptosporidiosis?

Answer 5

Hepatic form (cryptosporidiosis has intestinal, respiratory and renal form)

Question 6

Host range of Cryptosporidiosis?

Answer 6

Euryxenous (mammals and birds)

Question 7

How can we characterize the host specificity of Cryptosporidia baileyi?

Answer 7

Euryxenous

Question 8

Host range of Cryptosporidium baileyi?

Answer 8

Anseriform

Question 9

Life Cycle of Cryptosporidia parvum?

Answer 9

Homoxenous (via air/water/dust)

Question 10

Which is the method used to detect Cryptosporidium?

Answer 10

Kinyoun staining (also Ziehl-Neelsen, Safranin-methylene blue staining and Giemsa)

Question 11

What do the oocysts of Cryptosporidia contain?

Answer 11

4 sporozoites (no sporocysts)

Question 12

What organ is not involved during a C. baileyi infection of poultry?

Answer 12

Brain (organs affected: respiratory system, small and large intestine, cloaca and bursa Fabricius
and rarely in kidneys)

Question 13

Which species of Cryptosporidium occurs in birds?

Answer 13

C. baileyi (or C. galli or C. meleagridis)

Question 14

Where is Cryptosporidium mainly found

Answer 14

Small intestine (Ileum) or abomasum in case of C. muris and C. andersoni

Question 15

Which bird species are susceptible for C. bailyei infection?

Answer 15

Many species (especially young chickens)

Question 16

What is the causative agent of Cryptosporidiosis in mammals?

Answer 16

C. muris (and C. parvum, C. andersoni and C. bovis, C. felis, C. canis and C. hominis)

Question 17

Which parasite are homoxenous but not host specific?

Answer 17

Cryptosporidium parvum

Question 18

What are the clinical signs for C. baileyi?

Answer 18

Dyspnea and diarrhoea (also: coughing, sneezing, nasal discharges and conjunctivitis)

Question 19

What are the characteristics of Cryptosporidium baileyi oocysts?

Answer 19

6-7 µm, oval

Question 20

What form of Cryptosporidium can be found in fresh faeces?

Answer 20

Oocysts containing 4 sporozoites

Question 21

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

Answer 21

with flotation

Question 22

Which one of the following methods is perfect to stain Cryptosporidium oocysts?

Answer 22

Kinyoun-staining

Question 23

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

Answer 23

Respiratory

Question 24

In which location will Cryptosporidium baileyi not establish?

Answer 24

Stomach

Question 25

Which animal species can be infected by Toxoplasma gondii?

Answer 25

Many mammals and birds

Question 26

How many sporocysts do the Toxoplasma oocysts have?

Answer 26

2

Question 27

Which is not true

Answer 27

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

Question 28

Host range of Toxoplasmosis?

Answer 28

Cats, dogs, birds and humans and other mammals

Question 29

Which symptom does not occur during Toxoplasmosis infection in cats?

Answer 29

Abortion

Question 30

What can we find on the surface of the placenta, as a consequence of Toxoplasma infection in sheep and goat

Answer 30

Yellowish/white necrotic spots

Question 31

How can we characterize the life cycle of Toxoplasma gondii?

Answer 31

Facultative heteroxenous

Question 32

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

Answer 32

Cats (maximum 20 days/only for 1-2 weeks)

Question 33

What kind of host is the cat in Toxoplasma gondii?

Answer 33

Final Host/Definitive host

Question 34

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

Answer 34

1-2 weeks

Question 35

Which animals shed oocysts in Toxoplasmosis?

Answer 35

All species of cats as the definitive/final host

Question 36

What can be found in sporulated oocysts of Toxoplasmosis

Answer 36

2 sporocysts each containing 4 sporozoites

Question 37

What is the patency period for Toxoplasmosis?

Answer 37

20 days

Question 38

Oocyst of Toxoplasma gondii is indistinguishable from that of?

Answer 38

Hammondia hammondi

Question 39

What is the size of Toxoplasma cyst that contains tachyzoites?

Answer 39

20-100 µm

Question 40

What is the size of Toxoplasma gondii cyst?

Answer 40

20-100 µm

Question 41

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

Answer 41

Rabbit

Question 42

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

Answer 42

CNS symptoms (along with anorexia, pneumonia and diarrhea)

Question 43

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

Answer 43

Sabin-Feldman dye test

Question 44

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

Answer 44

Itching

Question 45

What animals are susceptible for Besnoitia besnoiti?

Answer 45

More ssp. of ruminants

Question 46

Besnoitia besnoiti species are?

Answer 46

Obligatory heteroxenous

Question 47

Which statement is not true for Besnoitia besnoiti? - It´s most important intermediate host is the dog. It can be transmitted by vectors, the cyst is visible to the naked eye, develops in the endothel - 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 - It´s most important intermediate host is the cat. It can be transmitted by vectors, the cyst is not visible to the naked eye, develops in the endothel

Answer 47

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 48

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

Answer 48

Sporulated

Question 49

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

Answer 49

Final hosts – dog, cat, wild carnivores and man

Question 50

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

Answer 50

S. hirsuta

Question 51

What is the Sacrocystiosis species of sheep?

Answer 51

S. gigantea

Question 51

What is the Sacrocystiosis species of sheep?

Answer 51

S. gigantea

Question 52

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

Answer 52

Groups of merozoites or small schizonts

Question 53

Intestinal Sarcosporidiosis can occur in?

Answer 53

Dog, cat, wild carnivores and man

Question 54

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

Answer 54

S. gigantea (in sheep)

Question 55

Muscle sarcosporidiosis can be found in?

Answer 55

Sheep, cattle, swine, horse and rabbit

Question 56

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

Answer 56

Cystozoites

Question 57

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

Answer 57

Subclinical

Question 58

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

Answer 58

Sporocysts

Question 59

Cattle cryptosporidiosis is common in this age group

Answer 59

1 - 3 weeks

Question 60

This staining method can be used to stain cryptosporidiosis

Answer 60

All of them (Especially Kinyuan staining)

Question 61

Avian cryptosporidiosis can cause pathological changes in this organ

Answer 61

Bursa Fabricii

Question 62

What symptoms can be caused by toxoplasma Gandii in human

Answer 62

All of them abortion, premature delivery, still-birth, mental disorders, blindness of the new-born

Question 63

Which animal is the intermediate host of toxoplasma gandii

Answer 63

Mammals and bird species

Question 64

What symptoms can be caused by toxoplasma gandii in horse?

Answer 64

Neural