Okay, we just came back from a walk.
My old dog was sniffing and "playing" w/a 4 mth old bull dog. After about five minutes of us hanging around, the dog growled at Jasper. I mentioned that it was cute, because he was such a baby. The owner replied, "Oh, he's not growling. He has kennel cough."
She didn't realize it was contagious. She did say her pup has been on medication for 24 hours after I said that just like kids, he probably isn't contagious after being on antibiotics for 24 hours. I hope she was telling the truth. We are probably okay, right? It was really five minutes of contact at most.