Which statement about canine influenza virus transmission is accurate?

• A. They only spread through direct contact
• B. They can spread via direct contact, fomites, and aerosols
• C. They are not contagious
• D. They are not found in Asia

Answer: (B)

Canine influenza virus spreads through multiple routes, not just direct contact. Infected dogs shed virus in respiratory secretions, so close interaction with an infected dog can transmit it. The virus can also contaminate objects and surfaces—like toys, bowls, or handlers’ clothing—so another dog can acquire it by touching those fomites and then entering their mucous membranes. Aerosols, or tiny droplets expelled when an infected dog coughs or breathes heavily, can carry the virus short distances and infect nearby dogs, especially in enclosed or crowded spaces. Together, these routes explain why transmission is possible through direct contact, fomites, and aerosols, making that statement accurate. It’s not correct to say the virus isn’t contagious, and it is known to occur in Asia, so those points are false.