Viro Final Integrative - TS

Question 1

What pig disease uses moribund live piglets for diagnostic purposes? what test do they perform on them?

Answer 1

PRRS

viral isolation

Question 2

Which horse virus is the 2nd viremia important for transmission and CNS invasion?

Answer 2

Equine encephalitides

Question 3

What is the difference between viral drift and shift?

Answer 3

drift - subs, insertions deletions

shift - recomb, reassortment, defective interfering particles

Question 4

What horse disease is urinary incontinence a sign of viral myelopathy?

Answer 4

Equine abortion (EHV-1)

Question 5

Which chicken disease uses embryonated eggs inoculated with buffy coat for virus isolation?

Answer 5

marek’s disease

Question 6

Which chicken disease are vaccination breaks common because of new antigenic variants?

Answer 6

avian infectious bronchitis

Question 7

Which chicken virus is shed in the meconium at hatching?

Answer 7

avian leukosis

Question 8

Which chicken virus is spread in ALL secretions and excretions?

Answer 8

newcastle dz

Question 9

What are the 5 clinical differences between mareks dz and avian leukosis?

Answer 9

mareks infects all ages, wing and leg paralysis, incidence >5% in unvaccinated flocks, nerve enlargment, interfollicular tumors in bursa

Question 10

What viruses produce immunotolerant persistantly infected animals?

Answer 10

BVDV
Hog cholera
avian infectious bronchitis
Avian leukosis (congenital only)

Question 11

What is the gold standard test for swine influenza?

Answer 11

viral isolation

Question 12

Which 2 viruses use fetal tissues for antigen detection?

Answer 12

Porcine parvo (IF)
Equine viral arteritis (RT-PCR)

Question 13

Which 2 swine diseases do not cause abortion?

Answer 13

PMWS, TGE

Question 14

Which 2 swine diseases are zoonotic?

Answer 14

swine influenza, swine vesicular dz

Question 15

Which 4 swine viruses do not use vaccination?

Answer 15

african swine fever, swine influenza, PRRS, TGE

Question 16

Which 3 swine viruses are notifiable?

Answer 16

hog cholera, swine vesicular dz, african swine fever

Question 17

Which 2 avian viruses are notifiable?

Answer 17

newcastle, avian influenza

Question 18

Which swine virus is caused by a picornaviridae virus?

Answer 18

swine vesicular dz

Question 19

Which swine disease causes low fertility in boars?

Answer 19

parvo

Question 20

Which swine disease can cause 100% mortality in naive neonates?

Answer 20

TGE

Question 21

Which swine disease is more frequent in winter months?

Answer 21

PRRS

Question 22

Which swine disease is infarction of the spleen pathognomic?

Answer 22

hog cholera

Question 23

Which swine disease can paracrystalline arrays be seen in the cytoplasm?

Answer 23

african swine fever

Question 24

Which 3 equine viruses cause abortion?

Answer 24

EHV 1, EVA, Equine influenza (2ry)

Question 25

Which horse diseases is vaccination usually used for control?

Answer 25

EVA, EEE, influenza, EHV 1 + 4,

Question 26

Which horse viruses are transmitted by direct contact only ?

Answer 26

EHV 4, influenza (aerosol)

Question 27

Which horse viruses have vertical transmission either transplacentally or through milk?

Answer 27

EIA, EVA,

Question 28

Which swine virus is transmissable only through saliva and nasal discharge?

Answer 28

pseudorabies

Question 29

Which avian virus needs vaccines that are constantly updated?

Answer 29

Infectious bursal dz

Question 30

Which 3 avian viruses are transmitted vertically?

Answer 30

newcastle, IBD, leukosis,

Question 31

Which 4 chicken viruses are spread thru fecal-oral route?

Answer 31

reovirus, IBD, leukosis, infectious bronchitis,

Question 32

What are the 3 arboviruses?

Answer 32

WNV, EEE, ASF

Question 33

Which chicken disease is sporadic in birds over 14 weeks and has an incidence of 3%?

Answer 33

avian leukosis

Question 34

Which bird disease causes graying of the iris?

Answer 34

mareks virus

Question 35

Which bird disease is vaccination done in ovo?

Answer 35

mareks virus

Question 36

What is the only virus that is in birnaviridae?

Answer 36

IBD

Question 37

Which disease do urate crystals form and cause kidney damage?

Answer 37

IBD

Question 38

Which disease is the virus found in dandruff?

Answer 38

mareks disease