Respiratory Diseases of Nursery Pigs

Question 1

Porcine Reproductive and Respiratory Syndrome Virus (PRRS) 2 other terms:

Answer 1

Mystery pig disease, Blue ear pig disease

Question 2

CS: late term sows: SMEDI

Answer 2

Porcine Reproductive and Respiratory Syndrome Virus (PRRS)

Question 3

3 stages in Porcine Reproductive and Respiratory Syndrome Virus (PRRS)

Answer 3

1. acute
2. persistence
3. extinction

Question 4

PRRS: persistent infection wherein the virus is eventually cleared (100-145 DPI)

Answer 4

Chronic persistent infection

Question 5

what PRRS stage: end of shedding, cleared

Answer 5

Extinction

Question 6

what PRRS stage: viremia, target cells attacked

Answer 6

Acute

Question 7

what PRRS stage: subclinical, decreased shedding

Answer 7

Persistence

Question 8

control for PRRS:

Answer 8

“Herd closure” for ±26 wks

Question 9

recovered animals develop immunity: what dz

Answer 9

PRRS

Question 10

Mycoplasma pneumonia other term

Answer 10

Porcine enzootic pneumonia

Question 11

Mycoplasma pneumonia CA

Answer 11

Mycoplasma hyopneumoniae

Question 12

causes lethal pneumonia in piglets

Answer 12

Mycoplasma pneumonia

Question 13

Lungs: concentrated on the apical Portions; what dz

Answer 13

Mycoplasma pneumonia

Question 14

3 antibiotics for Mycoplasma pneumonia

Answer 14

Tiamulin, Tilmicosin, Tylosin

Question 15

what dz has this lesion: Fatal fibrino-hemorrhagic and necrotizing pleuropneumonia

Answer 15

Porcine Pleuropneumonia/ APP infection

Question 16

2 toxin virulence factors of Porcine Pleuropneumonia/ APP infection

Answer 16

RTX and Apx

Question 17

what dz has this Cellular level lesion:
vascular leakage and thrombosis

Answer 17

Porcine Pleuropneumonia/ APP infection

Question 18

what DZ:
High fever;

high morbidity (±100%),

mortality (± 1%)

Answer 18

Swine Influenza

Question 19

2 types of receptors of Swine Influenza

Answer 19

human‐type receptor, avian‐type receptor

Question 20

what dz: Excessive cytokine activity (“cytokine storms”) → typical lung inflammation and disease

Answer 20

Swine Influenza