I have two cats that have had recurrent URIs since I got them in mid December. They also sometimes have a cough which comes and goes.
Stanley has had the most symptoms, and we did the FeBart test on him. It seemed the most logical explanation, all the symptoms fit, but the test came back negative. I was really confused (and a little disappointed becauase Bartonella is much more treatable than a viral infection). Bella, who had the least symptoms, suddenly came up with a fever a few weeks ago. When I took her to the vet, he said we should do the Bartonella test on her just in case. Her's came up positive.
Now both kitties are on a three week course of azithromycin (zithromax). Luckily we have a compounding pharmacy that makes this into a fish flavored liquid. So far so good. I'm just hoping this will be the thing to end the snot flinging in my house