LECTURE 14: Respiratory Diseases

Question 1

What are gross lesions of respiratory diseases?

Answer 1

1. Conjunctivitis
2. Rhinitis
3. Tracheitis
4. Pneumonia
5. Airsacculitis
6. Polyserositis

Question 1

What are general signs of respiratory disease?

Answer 1

1. Mortality
2. Anorexia
3. Coughing/Sneezing
4. Rales
5. Nasal/Ocular discharge
6. Swollen head
7. Inflamed eyelids

Question 2

What indicates pneumonia lungs?

Answer 2

Dark wet lungs

Question 3

Avian influenza is what?

Answer 3

Virus (influenza A)

Question 4

what makes a viral virus?

Answer 4

Enveloped virus

Question 5

Influenza A is a_____ virus?

Answer 5

RNA

Question 6

AI is easy to ______ and hard to _______.

Answer 6

kill, control

Question 7

AI considered what with the USDA?

Answer 7

Select agent

Question 8

AI is divided into what two groups?

Answer 8

1. LPAI
2. HPAI

Question 9

What are the two most important subtypes of LPAI?

Answer 9

1. H5
2. H7

Question 10

What are the ways that LPAI shifts to HPAI?

Answer 10

1. Antigenic shift
2. Antigenic drift

Question 11

What are natural reservoirs of HPAI?

Answer 11

Wild waterfowl

Question 12

HPAI is considered a….

Answer 12

Foreign Animal Disease

Question 13

LPAI causes a ______ infection whereas HPAI causes a __________ disease.

Answer 13

Localized, systemic

Question 14

What is the transmission of AI?

Answer 14

Horizontal NOT HEN TO CHICK

Question 15

AI affects what age of birds?

Answer 15

All

Question 16

Incubation period is _______ for AI?

Answer 16

Short

Question 17

What are the clinical signs of AI?

Answer 17

1. High mortality
2. Cyanosis
3. Hemorrhages
4. Nervous Signs
5. Respiratory
6. Diarrhea
7. Drop in Egg Production

Question 18

What are lesions of HPAI?

Answer 18

Petechial hemorrages (inflammed blood vessels)

Question 19

What are clinical signs of LPAI?

Answer 19

1. Rhinitis
2. Tracheitis
3. Airsacculitis
4. Polsyerositis
5. Pneumonia

Question 20

What are methods of testing for HPAI?

Answer 20

1. Swabs for molecular testing
2. Organs - virus isolation

Question 21

What are methods of testing for LPAI?

Answer 21

1. Blood for serology

Question 22

What are methods for diagnosing AI?

Answer 22

1. PCR
2. Serology

Question 23

What does the serological test protocol tell you?

Answer 23

Establishes prior exposure, test cannot determine pathotype and test cannot determine virus status

Question 24

How long is virus isolation for AI?

Answer 24

9-11 days

Question 25

What are differentials to AI?

Answer 25

High mortality or unexplained mortality, respiratory disease, production drops

Question 26

What are differentials for HPAI?

Answer 26

Newcastle disease and pasteurella multocida

Question 27

What are differentials for LPAI?

Answer 27

ILT, MG, IBV, Inf coryza

Question 28

AI immunity is….

Answer 28

humoral (antibodies)

Question 29

Newcastle is an _______.

Answer 29

Enveloped RNA virus

Question 30

How many serotypes are there for newcastle?

Answer 30

AMPV-1 (1)

Question 31

Newcastle is defined as what with the USDA?

Answer 31

Select agent/reportable/zoonotic

Question 32

What are reservoirs for newcastle?

Answer 32

Pigeons, cormorants, domestic poultry

Question 33

How is newcastle transmitted?

Answer 33

HORIZONTAL
-shedding
-spread

Question 34

What are the clinical signs of newcastle?

Answer 34

High mortality, respiratory signs, diarrhea, drop in egg production (may have no signs in vaccinated birds)

Question 35

What sampling should you do for newcastle?

Answer 35

1. Serology
2. Virus Isolation
3. PCR for detection
4. Characterization

Question 36

What are differentials for newcastle?

Answer 36

HPAI, NDV, fowel cholera

Question 37

vND is….

Answer 37

Reportable

Question 38

How do you control newcastle?

Answer 38

1. Biosecurity
2. Vaccination
3. Quarantine
4. Depopulation

Question 39

Can you give killed vaccines for newcastle?

Answer 39

Yes to boost immune system later give live vaccine first