Anyone who’s heard it will recognize the dry, hacking, something’s-stuck-in-my-throat cough that won’t quit. It’s the signature symptom of canine infectious tracheobronchitis, also known as Bordetellosis, Bordetella, and most commonly as kennel cough. Whatever you call it, tracheobronchitis is one of the world’s most widespread canine diseases. Like the common cold in humans, tracheobronchitis is highly contagious, rarely fatal, and runs its course in a few days. Fortunately, there are several ways to help make canine patients more comfortable, speed recovery, and prevent future infections. Tracheobronchitis is called kennel cough because of its association with boarding kennels, animal shelters, veterinary waiting rooms, grooming salons, and other areas where dogs congregate in close quarters. It can strike dogs of any age but is most common in puppies, whose immune systems are still developing, and adult dogs with conditions that impair immune function.