2.3K views · 97 reactions | Respiratory diseases are commonly spread from dog to dog through sneezing and coughing or by contaminated objects and surfaces (water bowls, toys, chews). Conditions that favor the spread of infections (close confinement) often occur in kennels, pet shops, boarding facilities, and humane shelters. Learn more: https://mrkmnls.co/47Qc5yl | The Merck Veterinary Manual | Facebook