I'm sorry CCMM, out here, in So. Calif, in the medical communities I've worked with and been a part of via family members, a Chest X-Ray is the first thing done when there is no improvement within the first week or two, based on symptoms or after the first round of antibotics if required in the first two weeks, and because of the influx of out of country children/adults world-wide into So. Calif, it's then TB test. Also, many many, did I say many? too many to count - are now receiving Pneumonia Vaccines that are good for 5 years. I truly hope your DH responds to treatment sooner rather than later. And, just thinking out loud, is he allergic to possible "mold" hidden from eyesight - somewhere? ok, enough of me...fingers crossed for you and yours,,,54 days is much too long for anyone.