For the OP, let's hope you got lucky, too. I see no point in quarantine at this stage. If you're not seeing runny noses, watery eyes, sneezing, etc., all may be well. I'm no experienced chicken keeper who's had them for many years as some of the posters in this thread are, but I doubt you'd have brought a disease home if you'd taken a few of mine, as I've never seen symptoms. Not saying you shouldn't have quarantined -- just that maybe you got away with it. An isolated death or two is going to happen with chickens; they are excellent at hiding illness, and could well have died of a reproductive system disease, heart attack, liver failure, etc. which are not contagious. I'd wait and see -- and of course handle it differently in the future.
If I were going to bring outside mature birds in, I'd not only isolate them downwind and some distance away, after a month of this I'd choose a "sacrifice" chicken or two and put that one in with the isolated one, then wait a while again. Kind of double insurance, as carriers may not show symptoms but a new bird might still catch something. The good news is, this is unnecessary if you buy chicks or eggs from a hatchery or reputable breeder.
Here's a good source on the sorts of diseases we're talking about:
http://edis.ifas.ufl.edu/ps044
And best of luck to you!
If I were going to bring outside mature birds in, I'd not only isolate them downwind and some distance away, after a month of this I'd choose a "sacrifice" chicken or two and put that one in with the isolated one, then wait a while again. Kind of double insurance, as carriers may not show symptoms but a new bird might still catch something. The good news is, this is unnecessary if you buy chicks or eggs from a hatchery or reputable breeder.
Here's a good source on the sorts of diseases we're talking about:
http://edis.ifas.ufl.edu/ps044
And best of luck to you!