Nursery 2 : DZ

Question 1

PRRS is caused by what virus

Answer 1

arterivirus

Question 2

lung characteristic for PRRS

Answer 2

diffused intersittial pneumonia
slight rubbery not consolidated

Question 3

what stages of PRRS: end of shedding, cleared

Answer 3

extinction

Question 4

what stages of PRRS: sublicnical, decreased shedding

Answer 4

persistence

Question 5

what stages of PRRS: viremia,

Answer 5

acute

Question 6

how many DPI Chronic persistent PRRS infection: persistent infection wherein the virus is eventually cleared

Answer 6

100-145

Question 7

where do PRRS replicate

Answer 7

Macrophage, lymphoid tissue

Question 8

PRRS Characteristic lesion

Answer 8

interstitial pneumonia + lymph node enlargement

Question 9

prevention and control for PRRS

Answer 9

herd closure for 26 wks
partial depopulation

Question 10

Lesions are concentrated on the apical
portions of the lung

Answer 10

mycoplasma pneumoniae

Question 11

CA of swine mycoplasma

Answer 11

Mycoplasma hyopneumoniae

Question 12

Mycoplasma infect and reproduce in/around

Answer 12

resp villi

Question 13

Porcine Pleuropneumonia/ APP infection CA

Answer 13

Actinobacillus/haemophilus pleuropneumoniae,

Question 14

Causes fatal fibrino-hemorrhagic and necrotizing pleuropneumonia; lung hemorrhaging, fibrinous exudation

Answer 14

Porcine Pleuropneumonia/ APP infection

Question 15

causes locally extensive dorsal diaphragmatic pneumonia

Answer 15

APP

Question 16

virulence toxin factors of APP

Answer 16

RTX and Apx toxins

Question 17

drugs for APP infections

Answer 17

enrofloxacin, tiamulin, lincomycin, tilmicosin

Question 18

swine influenza is zoonotic

Answer 18

t

Question 19

Influenza viruses have a wide range of hosts

Answer 19

t

Question 20

IAV subtypes are defined by their ___) and __

Answer 20

Hemagglutinin (H1-18)
Neuraminidase (N1-10) glycoproteins

Question 21

affects upper and lower respiratory tract of human and swine

Answer 21

human-type receptor

Question 22

found in the lungs of both species

Answer 22

avian‐type receptor

Question 23

where do swine influenza replicates

Answer 23

epithelial cells of the upper and lower respiratory tract of pigs

Question 24

swine influenza has high morb and mort

Answer 24

false. morb only

Question 25

Swine influenza virus excretion and transmission occur exclusively via the

Answer 25

respiratory route

Question 26

rotavirus species reported in swine

Answer 26

a,b,c

Question 27

how many species of rotavirus are there?

Answer 27

10

Question 28

rotavirus can be involved in enteritis during the first ___ of life

Answer 28

5 wks

Question 29

The sow can be the source of rotavirus; upon depletion of protective IgM in milk clinical infection

Answer 29

IgA

Question 30

where do rotavirus replicates

Answer 30

small intestinal proximal villi, resulting in villous blunting and atrophy

Question 31

what do RV targets

Answer 31

epithelial cells of the small intestinal jejunal and ileal tissues;

Question 32

IP of RV

Answer 32

24-48 hr incubation period

Question 33

rotavirus can be shed in feces

Answer 33

true

Question 34

established enteric pathogens of sucklings

Answer 34

Clostridium perfringens type C C. difficile

Question 35

cause of enteritis in other mammals

Answer 35

C. perfringens type A:

Question 36

divided into 7 toxino- types (A to G) based on the production of 6 major toxins

Answer 36

c. perfringens

Question 37

main virulence factor of C. perfringens type C

Answer 37

CPB toxin

Question 38

Piglets develop hemorrhagic diarrhea 8–22hours after exposure to this

Answer 38

Clostridium perfringens/difficile

Question 39

drugs for Clostridium perfringens/difficile

Answer 39

toxoid antibiotics (e.g. penicillin, ceftiofur)

Question 40

enteric infection syndromes

Answer 40

neonatal hemorrhagic and necrotic enteritis necrotizing enteritis necrotizing necrotic enterityphlocolitis

Question 41

histotoxic infection syndrome

Answer 41

gas gangrene

Question 42

neurotoxic infection syndrome

Answer 42

blackleg tetanus botulism