Bluetongue of sheep Flashcards Preview

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Flashcards in Bluetongue of sheep Deck (19):
0

bluetongue is dz of which species

sheep

1

bluetongue is also known as _________ or __________

catarrhal fever of sheep
soremuzzle

2

why is bluetongue known as catarrhal fever of sheep

it causes catarrhal stomatitis & rhinitis

3

name the bluetongue virus

orbivirus

4

orbivirus belongs to family _______

Reoviridae

5

bluetongue was first recognized in which county

south africa

6

how many serotypes of bluetongue virus are known

24

7

tell about spread of bluetongue

by biting insects

8

bluetongue spreads by bite of insects of _______ genus

Cullicoides

9

after entry in body, replication of bluetongue virus intially occurs in __________ and then in __________

haematopoietic cells
endothelial cells

10

why is the disease known as bluetongue

cyanosis and oedema of tongue

11

why is bluetongue known as soremuzzle

oedema of lips,tonue,ears,face,intermadibular space

12

cause of death in bluetongue

pneumonia

13

bluetongue may terminate into ___________ and _________

muscular weakness
torticollis

14

can bluetongue virus infect fetus

yes it can, if infection occurs when the animal is pregnant

15

bluetongue virus causes ___________ in fetus

cerebral abnormalities

16

extend of damage to fetus in bluetongue infection depends on ____________

stage or pregnancy

17

in bluetongue infection what occurs to fetuses of
40-60 days pregnant sheep
60-120 days pregnant cattle

hydran-encephaly

18

in bluetongue infection what occurs to fetus of pregnant cows and sheep if infected in later stage of pregnancy

pore-encephaly(cavity in brain)
retinal dysplasia