Apicomplexa (Eimeria, Isospora)

Question 1

2 classes of Subphylum Apicomplexa

Answer 1

Conoidasida, Aconoidasida

Question 2

Genera with sporozoites under Conoidasida having conoids

Answer 2

Gregarines, Coccidians

Question 3

Genera with sporozoites lacking conoids

Answer 3

Plasmodia, Piroplasms

Question 4

Truncated cone of spirally arranged fibrillar structures with role in invasion of hosts

Answer 4

Conoids

Question 5

What are the three parasites under Class Aconoidasida

Answer 5

Babesia, Theileria, Plasmodium

Question 6

Families of Order Coccidia

Answer 6

Eimeriidae, Cryptosporiidae, Sarcocystiidae, Klossiellidae, Heatozoidae, Lankesterellidae

Question 7

Families of Order Haemospororida

Answer 7

Family Plasmodiidae

Question 8

Families of Order Piroplasmorida

Answer 8

Babesiidae, Theileriidae

Question 9

What is the functional unit of coccidian ontogeny?

Answer 9

Zoite

Question 10

Sausage shaped cells which is the infective stage

Answer 10

sporozoites

Question 11

Undergo merogonic development inside the enterocytes

Answer 11

trophozoites

Question 12

3 phases of Eimeria life cycle

Answer 12

Merogony, Gametogony, Sporogony

Question 13

Released outside the enterocytes to invade other enterocytes or develop into gametes

Answer 13

merozoites

Question 14

Once sporozoites invade the epithelial cell of intestines, they become rounded and become?

Answer 14

trophozoites

Question 15

It represents the beginning and end point of every coccidian life cycle

Answer 15

zoite

Question 16

Trophozoite will then divide into a number of elongated nucleated merozoites, collectively known as?

Answer 16

meront

Question 17

During sporogony, after the division of nucleus the protoplasm forms these bodies that surrounds each nucleus budding off from the central core

Answer 17

Conical bodies

Question 18

Nucleus and conical body together then forms?

Answer 18

sporoblasts

Question 19

affects young animals associated with gastrointestinal disturbances which may vary from catarrhal to hemorrhagic diarrhea to no manifestation at all

Answer 19

coccidiosis

Question 20

It affects terminal ileum, cecum, and colon of young cattle with permanent stuntedness in animals that survived severe illness

Answer 20

Bovine coccidiosis

Question 21

Etiologic agent of Equine coccidiosis which affects small intestine of horses and donkeys

Answer 21

Eimeria leuckarti

Question 22

It occurs mainly to newborn piglets aged 3-21 days with persistent yellow white diarrhea but rarely bloody. Affected parts are jejunum and ileum

Answer 22

Pig coccidiosis (Eimeria spp., Isospora suis)

Question 23

These animals serve as intermediate hosts to important coccidia

Answer 23

Carnivores (non-pathogenic to dogs and cats)

Question 24

Coccidia found in the liver and bile duct of rabbit

Answer 24

Eimeria stiedai

Question 25

Coccidiosis etiologic agents affecting the duodenum of chickens

Answer 25

E. acervulina, E. praecox, E. hagani, E. mivati

Question 26

Etiologic agent of coccidiosis of chickens affecting the mid-intestine

Answer 26

E. necatrix

Question 27

Etiologic agent of coccidiosis of chickens affecting the jejunum and ileum

Answer 27

E. maxima

Question 28

Eimeria brunette causes coccidiosis in chickens particularly affecting?

Answer 28

lower SI, ceca, cloaca

Question 29

E. tenella affects?

Answer 29

Ceca

Question 30

What is the most pathogenic coccidiosis in chickens found in ceca?

Answer 30

Eimeria tenella

Question 31

Which disease is associated with cheesy necrotic core?

Answer 31

cecal coccidiosis

Question 32

These parasites are highly pathogenic, produce white spots in the intestinal wall and marked hemorrhage and ballooned mid intestine.

Answer 32

Eimeria necatrix

Question 33

They produce thickened intestine with pink mucoid exudate and coagulation necrosis with mucosal sloughing.

Answer 33

Eimeria maxima

Question 34

Which Eimeria spp affects upper small intestine producing typical striation and mucosal thickening?

Answer 34

Eimeria acervulina

Question 35

Which parasites produce characteristics of ladder lesions?

Answer 35

Eimeria acervulina

Question 36

Coccidia most pathogenic to Bobwhite quail

Answer 36

Eimeria lettyae

Question 37

Coccidia most pathogenic to chickens

Answer 37

Eimeria necatrix, E. tenella

Question 38

Coccidia pathogenic in pheasants

Answer 38

E. phasiani, E. colchici

Question 39

Generic name of Isospora which utilize paratenic hosts

Answer 39

Cystoisospora

Question 40

Isospora may or may not have ____ in their sporocysts

Answer 40

Stieda body

Question 41

They can complete their entire life cycle in a single host

Answer 41

Isospora

Question 42

Extra-intestinal stages of Isospora affects which organs?

Answer 42

spleen, liver, lymph nodes

Question 43

Isospora species affecting Camels

Answer 43

Cystipora orlovi

Question 44

Isospora species affecting dogs

Answer 44

Isospora canis Isospora ohioensis Isospora burrowsi Isospora neorivolta

Question 45

Isospora species affecting cats

Answer 45

Isospora felis Isospora rivolta

Question 46

Prevalent in neonatal pigs causing watery or greasy diarrhea (yellowish to white foul smelling feces)

Answer 46

Isospora infection

Question 47

Lesions present of Isospora infection

Answer 47

Villus atrophy Blunting of villi Focal ulceration Fibrinonecrotic enteritis

Question 48

Affects young animals while the older ones serves only as carriers

Answer 48

Coccidiosis in mammals

Question 49

associated with GIT disturbances which may vary from catarrhal to hemorrhagic diarrhea to no manifestation at all

Answer 49

coccidiosis in mammals

Question 50

Affects terminal ileum, cecum, and colon of young cattle

Answer 50

Bovine coccidiosis

Question 51

Affects small intestines of horse and donkey

Answer 51

Equine coccidiosis

Question 52

Pig coccidiosis affects what part of organ in swine

Answer 52

jejunum, ileum

Question 53

etiologic agents of pig coccidiosis

Answer 53

Eimeria spp. and Isospora suis

Question 54

Lesion of pig coccidiosis

Answer 54

Persistent yellow white diarrhea for 4-6 days, rarely bloody

Question 55

Exposure to minor amount of sporulated oocysts produce strong but not absolute immunity

Answer 55

cecal coccidiosis

Question 56

Oocysts occur in cecum but no associated gross lesions

Answer 56

Eimeria necatrix

Question 57

There is marked hemorrhage and ballooned mid-intestine

Answer 57

Eimeria necatrix

Question 58

Affected intestine thickened with pink mucoid exudate, coagulation necrosis with mucosal sloughing

Answer 58

Eimeria maxima

Question 59

Have the largest oocysts of Isospora

Answer 59

dogs

Question 60

Signs of Isospora infection in Pigs

Answer 60

watery or greasy diarrhea (yellow to white foul smelling feces