Small Animal Flashcards
Name a canine morbillivirus.
Canine distemper virus (Measles + rinderpest)
This canine virus infects many species (including wildlife) and causes multi system disease in the host?
Distemper
Name two canine viral infections that are transmitted via oronasal infection.
Distemper Infectious hepatitis
What is meant by pathognomonic?
A characteristic which is specific to one disease
Outline the clinical signs of distemper.
Anorexia, depression, pyrexia, ocular/nasal discharge, coughRed conjunctiva, v&dHyperkeratosisSeizures
Hyperkeratosis, a characteristic sign of distemper virus, is also known as what?
Hard pad disease
Infection of the CNS by distemper virus in the dog characterised by what? How long after infection do these signs show?
Seizures and muscle twitches 1-3weeks after infection
Which two characteristics of viral infection can be picked up using PCR?
Viral DNA - the antigen Host immune response - Ab
The use of PCR to detect the bodies immune response can detect the response to a virus or which other three situations?
Maternally derived antibodiesPrevious infectionVaccination
Distemper virus is unstable in the environment. True or false?
True
Since there are no antivirals available for many veterinary viral diseases what types of treatment are used for these cases?
Symptomatic and supportive
Feline infectious peritonitis is an example of what type of RNA virus?
Coronavirus
Which type of virus shows faster mutation rates, DNA or RNA viruses?
RNA viruses
Which Coronavirus is FIP thought to have mutated from?
Feline enteric Coronavirus
When FIP Coronavirus infects a naive cat which areas of the body does it colonise?
Upper respiratory tract
Intestinal epithelium
Tonsils - MALT tissues
How does experimental data compare with field data in relation to length of shedding of FECo?
Field data has shown shedding to be much longer (over 7 months) compared with experimental data (14-17 days)
Build up of antigen/antibody complexes in blood vessels during FIP infection can lead to what pathology?
Vasculitis
What detrimental effect can FIP Ab have on feline immune system during an FIP challenge? How can this make vaccination difficult?
Ab binding to FIP virus can enhance uptake into macrophages therefore increasing pathology. Vaccination increases Ab specific to disease.
Which type of adaptive immunity is vital for a cat to overcome FIP?
Cell mediated immunity
Describe the appearance of fluid withdrawn from a cat with FIP.
Straw colouredFroths when shakenClots on standingContains lots of globulin proteins
Haematology and biochemistry of a cat with FIP shows what characteristic results?
NeutrophiliaLymphopeniaMild non-regenerative anaemiaHyperproteinaemia - globulins in particularIncreased liver enzymes, urea and bilirubin
How can FIP be transmitted between cats?
Oronasal transmissionFaecal/ saliva contaminationTransplacental transmission
CAV-2 is an example of which type of virus? CAV vaccines are active against which strains?
AdenovirusCAV - 1&2 (but only contain CAV-2)
Outline the pathogenicity of canine herpes virus.
“fading puppy syndrome”Causes systemic disease in puppies and respiratory tract disease in older animals.Causes mild nasal serous discharge.
Which influenza strain is most significant in dogs?
H3N8 - horse >> dog strain
Outline how an infection of Bordetella bronchoseptica can be identified. How can BB be typed?
Charcoal cephalexin agar from a bronchioalveolar wash/ oro-pharyngeal swab.Typing is done via pulse-field gel electrophoresis (separates larger pieces of DNA)
Outline the pathogenicity of Bordetella bronchoseptica.
Incubates for 6 days.Attaches to ciliated epithelium causing ciliostasis. Causes coughing, nasal discharge, bronchopneumonia and paroxysmal cough.
How long can the carrier status of Bordetella bronchoseptica persist?
3 Months
Outline the structure of Bordetella bronchoseptica.
Gram -ve bacillococcus
What type of vaccination is used for bordetella brochoseptica?
Intranasal avirulent live vaccine which causes a local IgA reaction.
Name a paramyxo virus and outline its pathogenicity.
Parainfluenza.Multiplies in epithelial and lymphoid tissue and causes mild cough and serous nasal discharge.