A case of death occurred followed after debility and cough in a six- month- old, male Dane that developed following stay in a private household. In the necropsy of the dog, hemorrhagic and cloudy fluid in thorax, broad hepatized areas and white-gray suppurative foci in lungs and congestion in other organs were observed and after the bacteriological examinations, Bordetella bronchiseptica were isolated as a pure culture from the lung.