Lecture 22 Flashcards
Where has Calicivirus been isolated from
Broad range on vertebrates
What are the symptoms of human calicivirus
Vomiting
Nausea, diarrhoea, abdominal cramping
What does Rabbit Haemorrhagic disease virus cause
Rabbit haemorrhage disease in adult European rabbits
Where was Rabbit Haemorrhagic disease virus first found
China
What in the incubation of Rabbit Haemorrhagic disease virus
1-5 days
What are the clinical signs of Rabbit Haemorrhagic disease virus
Fever, anorexia, apathy, prostration, nervous signs, respiratory signs and cyanosis of mucous membranes
When does death occur with Rabbit Haemorrhagic disease virus
12-36 hours
What are the primary lesions with Rabbit Haemorrhagic disease
Liver necrosis and splenomegaly
What are the routes of transmission with Rabbit Haemorrhagic disease
Oral, nasal or conjunctival routes
Exposure to an infected carcass
Mechanical transmission
What is vesticular exanthema of swine virus known for causing
Highly infectious, vesicular disease in febrile swine
What is vesticular exanthema of swine virus indistinguishable from
Foot-and-mouth disease, swine vesticular disease and vesticular stomatitis disease
What is vesticular exanthema of swine virus associated with
Vesicles in the mouth, tongue, lips, snout and feet at the coronary band between the digits
How is vesticular exanthema of swine virus controlled
By test and slaughter
Prevention of swill feeding
What is the natural reservoir of vesticular exanthema of swine virus
Sea food to pigs
What is Feline calicivirus
highly contagious pathogen that is found worldwide
How is Feline calicivirus shed
oral and nasal secretion during acute phase of infection
How are cats infected with Feline calicivirus
Via the nasal oral or conjunctival routes
When does transient viraemia occur with Feline calicivirus
3-4 days after infection and there is necrosis of epithelial tissues
What is the most consistent pathological feature in cats with Feline calicivirus
Oral ulcerations
What is associated with Feline calicivirus
Lameness with fever
Lesions in joints
What is Feline stomatitis
Oral mucosa inflammation
What is Virulent systemic feline calicivirus
Widespread lesions and subcutaneous oedema, ulceration of mouth and ulceration of skin particularly on the ears, nose and paw paws
What is seen with Virulent systemic feline calicivirus
Gross lesions are variable and may include bronchointestitial pneumonia and necrosis in liver, spleen and pancreas
What could be responsible for the highly virulent phenotype in Virulent systemic feline calicivirus
Mutations within the viral genome
How is Virulent systemic feline calicivirus shed
Respiratory secretion, urine and faeces of infected cats
What is the natural transmission of Virulent systemic feline calicivirus
Aerosol route and via fomites
What is recovery of Virulent systemic feline calicivirus followed by
Prolonged oropharyngeal carrier state
What is the second most common cause of viral gastroenteritis in children after rotavirus infection
Mamastroviruses
What does Avian nephritis virus cause
Diarrhoea, growth retardation, kidney damage, and gout resulting in moderate increased mortality
How is Avian nephritis virus transmitted
Direct or indirect contact
What does Avian nephritis virus cause
Histological changes in the kidney although the viral antigen can be detected in other organs
What are the 2 disease syndromes in young chicks with chicken astrovirus (CAstV)
Runting-stunting syndrome
White chick fever
What is the most common cause of enteric viral hepatitis infection in humans worldwide
Hepatitis E virus
In birds what is hepatitis E virus associated with
Big liver and spleen
What is BSL/HSS spread by
Birds through faecal-oral route
