Lecture 16 Flashcards

(37 cards)

1
Q

What are the subfamilies of Herpesviridae (3)

A
  1. Alphaherpesvirinae
  2. Betaherpervirinae
  3. Gammahepesvirinae
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Where is Equid alphaherpesvirus 1 and 4

A

In horses

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What does EHV-1 cause

A

respiratory disease, abortion and neurologic disease

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What does EHV-4 cause

A

Respiratory disease

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Where is EHV-1 and -4 most commonly seen

A

Weaned foals and yearlings

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Clinical signs of EHV-1 and -4

A

Coughing, nasal discharge, enlargement of the mandibular and/or retropharyngeal lymph nodes, lethargy, anorexia, conjunctivitis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Clinical signs of EHM (5)

A
  1. Incoordination of hind
  2. Ataxia
  3. Urine retention
  4. Recumbency
  5. Neurological sigs are preceded by fever and/or respiration
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

How to diagnose EHV-1 and -4 (3)

A
  1. Laboratory diagnosis with histological lesions
  2. Viral antigens
  3. Viral genome can be detected using specific PCR
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What are the vaccines of EHV-1 and EHV-4 (2)

A
  1. Live attenuated and inactivated vaccines

2. Reduce abortion and CNS infection

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Equid gammeherpesvirus 2 and 5 is present where?

A

Horses

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What is associated with Equine Multinodular Pulmonary Fibrosis

A

EHV-5 and with EHV-2, can be linked with a characteristic interstitial lung fibrosis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What does Equine Multinodular Pulmonary Fibrosis affect

A

Older horses causing weightless and reduced ability to exercise as result of the formations of nodular lesions in the lungs

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Where does Equid alphaherpesvirus cause lesions

A

Penis and vulva

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What are the clinical signs of canid alphaherpesvirus 1 in pups

A

Generalised necrotising and haemorrhage disease

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

How can pups become infected with canid alphaherpesvirus

A

Neonatal, this causes vocalisation, anorexia, dyspnoea, abdominal pain, incoordination and soft faeces

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What is felid alphaherpesvirus

A

Upper respiratory tract disease

17
Q

What are the clinical signs of felid alphaherpesvirus

A

Coughing, sneezing, nasal discharge, conjunctivitis and sometimes fever and loss of appetite

18
Q

What is gallid alphaherpesvirus

A

Infectious laryngotracheitis

19
Q

What does gallid alphaherpesvirus

A

Conjunctivitis, pharyngitis and tracheitis

20
Q

What are early signs of gallid alphaherpesvirus

A

Hard swallowing, ruffled feathers on back of head, squinting and conjunctivitis

21
Q

What are the classic signs of gallid alphaherpesvirus

A

Coughing, gasping and expending the neck forward and upward with each breath to clear mucous from trachea

22
Q

How is ILT transmitted from animal to animal

A

Respiratory secretions

23
Q

How can ILT be transmitted between flocks

A

aerosols or fomites

24
Q

What is gallid alphaherpesvirus 2 also known as

A

Marek’s Disease

25
What are the clinical signs of Marek's disease
Depression, paralysis, appetite loss, weight loss, anaemia, dehydration
26
What are the Marek's disease vaccine derived from
1. Attenuated versions of the wild type virus (serotype 1) 2. A related Marek's disease virus (serotype 2) 3. A related herpesvirus from turkeys (serotype 3)
27
What are the first signs of Anatid alphaherpesvirus 1 in flocks
High persistent mortality with significant drop in egg production in laying flocks
28
What is Suid alphaherpesvirus also known as
Aujeszky's disease
29
How is Aujeszky's disease spread
Nose-to-nose contact between pigs
30
How to diagnose Aujeszky's disease
Detection of antigen or viral DNA in tissue
31
What is Bovine alphaherpesvirus also known as
Infectious bovine rhinotracheitis
32
How can viral DNA of Bovine alphaherpesvirus be detected
PCR
33
What does Bovine alphaherpesvirus 5 cause
Meningoencephalitis and mild respiratory disease in cattle
34
What are the 2 Bovine alphaherpesvirus 2 caused in cattle
1. Bovine mammillitis - often associated with early winter and first lactation heifers 2. Pseudo-lumpy skin disease - characterised by a generalised eruption of superficial cutaneous nodules
35
What does Malignant catarrhal fever infect
Cattle
36
What are the clinical signs of Malignant catarrhal fever (4)
1. Fever, depression, weakness, diarrhoea 2. Muzzle and nares are encrusted 3. Bilateral keratitis 4. Ataxia, nystagmus and head pressing
37
Where do Herpesviruses replicate
Nucleus