Infectious tracheobronchitis (kennel cough) is highly contagious in group dog settings, causing uncomfortable respiratory illness that is largely preventable through vaccination and good management practices.
Kennel cough causes genuine discomfort through persistent coughing fits that can interfere with sleep, eating, and normal activity. Affected dogs may show post-tussive retching, exercise intolerance, and reduced engagement with normal activities during the illness period. The welfare harm is time-limited in most cases, but progression to bacterial pneumonia in vulnerable dogs represents a more serious welfare concern requiring prompt veterinary attention. Prevention through vaccination and isolation of symptomatic animals represents the most welfare-positive approach in group dog settings. Facilities that require current vaccination and exclude symptomatic dogs protect the welfare of all animals in their care — a responsibility that boarding facilities, daycares, and shelters share.