Canine Adenovirus Type 2

Disease Overview

Canine adenovirus type 2 (CAV-2) is related to the hepatitis virus, canine adenovirus type 1 (CAV-1). CAV-2 is used in vaccines to provide protection against canine infectious hepatitis. CAV-2 is also one of the causes of infectious tracheobronchitis, also known as canine cough. ³⁰

Merck Animal Health Solutions

For Canine Adenovirus Type 2

Transmission

Adenoviruses are spread directly from dog to dog through infected respiratory secretions or by contact with contaminated feces or urine.

Clinical Signs³⁰

Respiratory disease (CAV-2)

• Dry, hacking cough (dogs)
• Retching
• Sneezing
• Watery nasal discharge
• Pneumonia, inappetence, fever, and lethargy in severe cases

Hepatitis (CAV-1)

• Fever
• Abdominal pain
• Vomiting
• Diarrhea

Risk Factors

• Dogs that come from shelters, rescue centers, breeding kennels, or pet stores
• Boarding at a kennel or doggie daycare
• Visiting groomers, dog parks, or engaging with other dogs on a daily basis
• Dogs that live in multi-pet homes

References:

1. Greene C. Infectious canine hepatitis and canine acidophil cell hepatitis. In: Greene CE, ed. Infectious Diseases of the Dog and Cat. 3rd ed. St. Louis, MO: Saunders/Elsevier; 2006:43.