Unexplained Dog Respiratory Illness Spreads Across Multiple States

Veterinarians in at least four states are investigating a mysterious respiratory illness affecting dogs, with symptoms similar to kennel cough but lasting longer and sometimes proving fatal. Dogs with the illness develop a cough, fever, lethargy, and intermittent loss of appetite. Cases have been reported in Colorado, Massachusetts, Oregon, and Rhode Island, but experts suspect it is more widespread. The illness is more common in dogs that have spent time in places with a high concentration of dogs, such as boarding facilities or dog parks. Veterinarians recommend isolating dogs with respiratory symptoms and seeking veterinary care. The cause of the illness is still unknown, and investigations are ongoing.