I have a real problem with the saying *no lung damage*. Some kids yes have *no lung damage* or apparent symptoms for years and perhaps there I can see saying it, perhaps.
As adults unless you have 100% PFT's and not only your xray but a CT (some things dont show up on xray) are completely normal I dont think you can really say 'no lung damage'. I also think you should not culture anythign because lets face it that's damage too.
I think there is always damage to some degree unless perhaps if the person is symptom free and only got dx due to infertility or something. If we get sick more often than others there is damage, if we culture bugs there is damage, etc.
I just think this is one area where we allow ourselves to say, "yes, no lung damage" and somehow give ourselves a card to xyz fill in the blank.
just my 2 cents.