... and returned home. Now, two weeks later, he's still sick. I don't know why and I'm scared. At one point he switched from Avalox to another another antibiotic (begins with a z) and that seemed to make him worse. He resumed work lugging computers around and working on them. This seemed to tire him out but we need his second income. We can't live on my salary alone. Can pneumonia last this long? Are there cases where people have it chronically?