LECTURE 15: Respiratory Disease II

Question 1

Herpesvirus happens in what sector?

Answer 1

Chickens

Question 2

Herpesvirus is a _________.

Answer 2

DNA enveloped

Question 3

Herpes virus generally happens in what age ranges for chickens?

Answer 3

Older birds

Question 4

What is the route of transmission for herpesvirus?

Answer 4

Horizontal transmission

Question 5

What are clinical signs of herpes virus?

Answer 5

1. Increased mortality
2. Typically upper respiratory
3. Open mouth breathing
4. Head shaking
5. Coughing blood
6. Drop in egg production

Question 6

What are gross lesions of herpes virus?

Answer 6

Severe Tracheitis
Tracheal plugs

Question 7

What are differentials for herpes virus?

Answer 7

Wet Pox, ND, AI, MG, MS, Coryza

Question 8

What samples do you take for ILT?

Answer 8

Trachea samples, PCR, serology, Histopathology

Question 9

How do you prevent ILT?

Answer 9

Biosecurity and Vaccination (killed vaccines)

Question 10

Fowl pox is what type of virus?

Answer 10

Large enveloped DNA

Question 11

What are the 2 forms of pox?

Answer 11

1. Dry form (skin lesions)
2. Wet form (thick tissue membrane)

Question 12

How is fowlpox transmitted?

Answer 12

Horizontal and mechanical (biting insects, mechanic vectors, aerosol)

Question 13

What are clinical signs of fowlpox dry form?

Answer 13

1. Dark brown to black scabs on the unfeathered skin
2. Blindness due to eye lesions and may lead to starvation
3. Decreased feed consumption/ egg productiom

Question 14

What are the clinical signs of fowlpox wet form?

Answer 14

1. Yellow to white raised plaques on the mouth and larynx
2. Gasping

Question 15

What is a method of diagnosis for fowl pox?

Answer 15

Histopathology

Question 16

How do you prevent and control fowl pox?

Answer 16

1. Vaccination (wing web vaccine)
2. Biosecurity (flies a huge issue with this)

Question 17

What is an infectious bronchitis?

Answer 17

Coronavirus

Question 18

Infectious bronchitis is a _____ virus?

Answer 18

RNA enveloped virus

Question 19

What are the 3 pathotypes of infectious bronchitis?

Answer 19

Respiratory
Reproduction
Renal

Question 20

Infectious bronchitis is ____ only disease?

Answer 20

chicken

Question 21

What is the transition mechanism for infectious bronchitis?

Answer 21

Horizontal and airborne

Question 22

What are the clinical signs for respiratory infectious bronchitis?

Answer 22

Swollen head

Question 23

What are the clinical signs for renal infectious bronchitis?

Answer 23

Diarrhea, nephrosis

Question 24

What are the clinical signs for reproductive infectious bronchitis?

Answer 24

Egg quality and quantity

Question 25

What samples would you take for infectious bronchitis?

Answer 25

1. Blood (multiple sereotypes) 2. Virus Isolation

Question 26

What are means of intervention for infectious bronchitis?

Answer 26

1. Immunity 2. Live serotype specific 3. Inactivated vaccines in breeder

Question 27

What are the mycoplasmas affect turkeys?

Answer 27

1. Mycoplasma Iowae 2. Mycoplasma meleagridis

Question 28

What are the mycoplasmas that affect chickens?

Answer 28

1. Mycoplasma gallisepticum 2. Mycoplasma synoviae

Question 29

Mycoplasma ssp lacks....

Answer 29

lacks cell wall

Question 30

What is the method of spread for mycoplasma spp?

Answer 30

VERTICAL but also horizontal

Question 31

TRUE or FALSE? Mycoplasmas can affect all birds?

Answer 31

TRUE

Question 32

Infected birds of mycoplasma will be....

Answer 32

Infected for life

Question 33

What are clinical signs of MG and MS?

Answer 33

1. Sinusitis/ arisacculitis 2. Condemnations in the Plant 3. Complicate respiratory viral vaccines

Question 34

What is the classical triad of MG?

Answer 34

1. Fibrinous pericarditis 2. Fibrinous airsacculitis 3. Fibrinous perihepatitis

Question 35

What samples would you take for mycoplasmas?

Answer 35

1. Serology 2. Respiratory swabs 3. PCR *** 4. Next Gen Sequencing 5. Low Isolation Rate

Question 36

Why is it hard to culture mycoplasma?

Answer 36

REALLY HARD TO GROW