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Viral disease of dogs - Coggle Diagram
Viral disease of dogs
Canine parvovirus
Pathogenesis
Young unvaccinated/incompletely vaccinated dogs most at risk
Kills rapidly dividing cells
Clinical signs
Diarrhoea
Pyrexia
Vomiting
Immune suppression
Myocarditis
Sudden death
Transmission
Indirect contact
Faeco-oral route
Direct contact
Treatment
Supportive
Interferon
Can survive months to years in environment
Prevention = vaccination
DNA virus
Canine distemper virus
Pathogenesis
Initial replication in respiratory tract lymph nodes
Viraemia causes spread/infection of
Respiratory tract
CNS
Urogenital epithelium
GIT
Lymphopaenia - secondary bacterial infections
Treatment - supportive and symptomatic
Transmission
Inhalation of aerosols
Close contact with infected animals
Prevention = vaccination
RNA
Clinical signs
Nasal/oral discharge
Vomiting
Sneezing
Diarrhoea
Coughing
Biphasic fever
Neurological
Hard pad
Paramyxovirus
Infectious canine hepatitis
Pathogenesis
Incubation period = 4-9 days
Initial replication in tonsils and peyers patches
Shed in urine for up to 6 months post recovery
Clinical signs
Coagulopathies and haemorrhage
Hepatitis
Anorexia
Abdominal pain
Vomiting
Diarrhoea
Liver failure
Corneal oedema = blue eye
Transmission
Direct/indirect contact with oral/nasal discharge
Direct/indirect contact with urine and faeces
Treatment = supportive
DNA
Prevention = vaccination
Canine adenovirus-1 (CAV-1)
Rabies
Pathogenesis
Spread via bites
Travels from bite via peripheral nerves to spinal cord/brain
Intermittently shed in saliva
Travels from brain to salivary glands
No treatment - it is fatal
Transmission
Saliva
Prevention = vaccination
RNA
Clinical signs
Furious form
Anxiety
Seizures
Aggression
Ataxia
Paralysis
Death
Dumb form
Paralysis
Death
Ataxia
Rhabdovirus
Canine Parainfluenza virus
Clinical signs
Mild upper respiratory signs
Coughing
Nasal discharge
Sneezing
Shed for up to 2 weeks post recovery
Incubation period = 5-10 days
Prevention = vaccination
Transmission
Aerosols
Direct contact
Treatment = supportive
Kennel cough