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Upper Respiratory Infection in Cats(URI)

Infection of the upper respiratory tract caused by multiple pathogens including herpesvirus and calicivirus, commonly known as 'cat flu'. More severe in kittens and immunocompromised cats.

Vet Supervised

Symptoms

  • Sneezing
  • Nasal discharge
  • Eye discharge
  • Fever
  • Decreased appetite
  • Mouth ulcers (calicivirus)

Causes

  • Feline herpesvirus-1
  • Feline calicivirus
  • Chlamydia
  • Bordetella
  • Mycoplasma

Diagnosis

1

Clinical diagnosis

2

PCR testing

3

Virus isolation

4

Conjunctival swabs

Treatment

  • Supportive care (eye/nasal drops)
  • Antibiotics (secondary infection prevention)
  • Fluid therapy
  • Nutritional support
  • Nebulization therapy

Prognosis

Most adult cats recover within 1-3 weeks, but herpesvirus remains latent lifelong and may recur with stress.

Severity: Medium

Prevention

  • Core vaccination (FVRCP)
  • Quarantine period for new cats
  • Hygiene in multi-cat environments
  • Stress reduction

Commonly Affected Breeds

Epidemiology

Age Range

Most severe in kittens and young cats

Prevalence

Up to 50% infection rate in shelter environments

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