Para lab 5

Question 1

What is the size of a Cryptosporiudium 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 sporocytes?

Answer 3

Cryptosporidium

Question 4

What are the characteristics of cryptosporidium meleagridis oocysts?

Answer 4

5 um, spherical

Question 5

Which form is not characteristic of avian Cryptosporidiosis?

Answer 5

Hepatic fprm (cyptosporidiosis has intestinal respiratory and renal form)

Question 6

Host range of cryptosporidiosis?

Answer 6

Euryxenous

Question 7

Host range of Cryptosporidium baileyi?

Answer 7

Anseriform

Question 8

Life cycle of cryptosporidia parvum

Answer 8

Homoxenous (via air/water/ dust)

Question 9

Which is the method used to detect Cryptosporidium?

Answer 9

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

Question 10

What do the oocysts of cryptosporidia contain?

Answer 10

4 sporozoites (no sporocysts)

Question 11

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

Answer 11

Brain (organ affected -> respiratory system, small and large intestine, cloaca and bursa Fabricius and rarely in kidneys)

Question 12

Which species of cryptosporidium occurs in birds?

Answer 12

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

Question 13

Where is cryptosporidium mainly found?

Answer 13

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

Question 14

Which bird species are susceptible for C.bailyei infection?

Answer 14

Many species especially young chickens

Question 15

What is the causative agent of cryptosporidiosis in mammals?

Answer 15

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

Question 16

Which parasite are homoxenous but not host specific?

Answer 16

Cryptosporidium parvum

Question 17

What are the clinical signs for C.baileyi?

Answer 17

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

Question 18

What are the characteristics of Cryptosporidium baileyi oocysts?

Answer 18

6-7um, oval

Question 19

What form of cryptosporidium can be found in fresh faeces?

Answer 19

Oocysts containing 4 sporozoites

Question 20

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

Answer 20

with flotation

Question 21

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

Answer 21

Respiratory

Question 22

In which location will Cryptosporidium baiileyi not establish?

Answer 22

Stomach

Question 23

Which animal species can be infected by toxaplasma gondii?

Answer 23

many mammals and birds

Question 24

How many sporocysts do the Toxoplasma oocysts have?

Answer 24

two

Question 25

Which is not true?

Answer 25

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

Question 26

Host range of toxoplasmosis

Answer 26

Cats, dogs, birds and humans and other mammals

Question 27

Which symptom does not occur during toxoplasmosis infection in cats?

Answer 27

Abortion

Question 28

Which species does not abort when infected with toxoplasmosis?

Answer 28

Cat

Question 29

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

Answer 29

Yellowish/ white necrotic spots

Question 30

How can we characterize the life cycle of Toxoplasma gondii?

Answer 30

Facultative heteroxenous

Question 31

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

Answer 31

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

Question 32

What kind of host is the cat in toxoplasma gondii?

Answer 32

Final host/ Definitive host

Question 33

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

Answer 33

1-2 weeks

Question 34

Which animal shed oocysts in Toxoplasmosis?

Answer 34

All species of cats as the definite/final host

Question 35

What can be found in sporulated oocysts of Toxoplasmosis?

Answer 35

2 sporocysts each containing 4 sporozoites

Question 36

What is the patency period for Toxoplasmosis?

Answer 36

20 days

Question 37

Oocyst of Toxoplasma gondii is indistinguishabe from that of?

Answer 37

Hammondia hammondi

Question 38

What is the size of Toxoplasma cyst that contains tachyzoites?

Answer 38

20-100 micrometers

Question 39

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

Answer 39

Rabbit

Question 40

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

Answer 40

CNS symptoms (along with anorexia, pneumonia and diarrhea)

Question 41

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

Answer 41

Sabin-Feldman dye test

Question 42

What animals are susceptible for Besnoita besnoiti?

Answer 42

Most species of Ru

Question 43

Besnoita besnoiti species are - lifecycle?

Answer 43

Obligatory heteroxenous

Question 44

Which statement is not true about Besnoita besnoiti?

Answer 44

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

Question 45

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

Answer 45

Final hosts - dog, cat, wild, carnivores and man

Question 46

What is the Sarcocystiosis species of cattle among these?

Answer 46

S.hirsuta, S.equicanis, S.gigantea

Question 47

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

Answer 47

Groups of merozoites or small schizonts

Question 48

Itestinal Sarcosporidiosis can occur in?

Answer 48

Dog, cat, wild carnivores and man

Question 49

What pea sized and greyish yellow sporocysts are found in the wall of the eosophagus?

Answer 49

S.gigantea (in sheep)

Question 50

Muscle sarcosporidiosis can be found in?

Answer 50

Sheep, cattle, swine, horse and rabbit

Question 51

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

Answer 51

Cystozoites

Question 52

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

Answer 52

Subclincal

Question 53

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

Answer 53

Sporocysts