Lecture 22 Flashcards

1
Q

Where has Calicivirus been isolated from

A

Broad range on vertebrates

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2
Q

What are the symptoms of human calicivirus

A

Vomiting

Nausea, diarrhoea, abdominal cramping

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3
Q

What does Rabbit Haemorrhagic disease virus cause

A

Rabbit haemorrhage disease in adult European rabbits

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4
Q

Where was Rabbit Haemorrhagic disease virus first found

A

China

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5
Q

What in the incubation of Rabbit Haemorrhagic disease virus

A

1-5 days

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6
Q

What are the clinical signs of Rabbit Haemorrhagic disease virus

A

Fever, anorexia, apathy, prostration, nervous signs, respiratory signs and cyanosis of mucous membranes

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7
Q

When does death occur with Rabbit Haemorrhagic disease virus

A

12-36 hours

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8
Q

What are the primary lesions with Rabbit Haemorrhagic disease

A

Liver necrosis and splenomegaly

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9
Q

What are the routes of transmission with Rabbit Haemorrhagic disease

A

Oral, nasal or conjunctival routes
Exposure to an infected carcass
Mechanical transmission

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10
Q

What is vesticular exanthema of swine virus known for causing

A

Highly infectious, vesicular disease in febrile swine

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11
Q

What is vesticular exanthema of swine virus indistinguishable from

A

Foot-and-mouth disease, swine vesticular disease and vesticular stomatitis disease

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12
Q

What is vesticular exanthema of swine virus associated with

A

Vesicles in the mouth, tongue, lips, snout and feet at the coronary band between the digits

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13
Q

How is vesticular exanthema of swine virus controlled

A

By test and slaughter

Prevention of swill feeding

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14
Q

What is the natural reservoir of vesticular exanthema of swine virus

A

Sea food to pigs

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15
Q

What is Feline calicivirus

A

highly contagious pathogen that is found worldwide

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16
Q

How is Feline calicivirus shed

A

oral and nasal secretion during acute phase of infection

17
Q

How are cats infected with Feline calicivirus

A

Via the nasal oral or conjunctival routes

18
Q

When does transient viraemia occur with Feline calicivirus

A

3-4 days after infection and there is necrosis of epithelial tissues

19
Q

What is the most consistent pathological feature in cats with Feline calicivirus

A

Oral ulcerations

20
Q

What is associated with Feline calicivirus

A

Lameness with fever

Lesions in joints

21
Q

What is Feline stomatitis

A

Oral mucosa inflammation

22
Q

What is Virulent systemic feline calicivirus

A

Widespread lesions and subcutaneous oedema, ulceration of mouth and ulceration of skin particularly on the ears, nose and paw paws

23
Q

What is seen with Virulent systemic feline calicivirus

A

Gross lesions are variable and may include bronchointestitial pneumonia and necrosis in liver, spleen and pancreas

24
Q

What could be responsible for the highly virulent phenotype in Virulent systemic feline calicivirus

A

Mutations within the viral genome

25
Q

How is Virulent systemic feline calicivirus shed

A

Respiratory secretion, urine and faeces of infected cats

26
Q

What is the natural transmission of Virulent systemic feline calicivirus

A

Aerosol route and via fomites

27
Q

What is recovery of Virulent systemic feline calicivirus followed by

A

Prolonged oropharyngeal carrier state

28
Q

What is the second most common cause of viral gastroenteritis in children after rotavirus infection

A

Mamastroviruses

29
Q

What does Avian nephritis virus cause

A

Diarrhoea, growth retardation, kidney damage, and gout resulting in moderate increased mortality

30
Q

How is Avian nephritis virus transmitted

A

Direct or indirect contact

31
Q

What does Avian nephritis virus cause

A

Histological changes in the kidney although the viral antigen can be detected in other organs

32
Q

What are the 2 disease syndromes in young chicks with chicken astrovirus (CAstV)

A

Runting-stunting syndrome

White chick fever

33
Q

What is the most common cause of enteric viral hepatitis infection in humans worldwide

A

Hepatitis E virus

34
Q

In birds what is hepatitis E virus associated with

A

Big liver and spleen

35
Q

What is BSL/HSS spread by

A

Birds through faecal-oral route