we've just had a bordetella outbreak in the Phila. area. had 38 squirrels, and eventually lost about 12-15 to the disease. they started with congestion - sometimes very thick/heavy congestion - other times just sneezy and coughing. then it would quickly go to the lungs - they could barely breathe, so would have to be put down. this was all within about 2 days! Baytril didn't do a thing to help. neither did Cipro. Orbax helped a bit. By then it was discovered that we were dealing with bordetalla. Doxycycline and Tribrissen were used to treat the remaining squirrels. it seemed to clear up the ones who had been infected if they weren't too far gone. Very contagious and airborne. horrible combination!