These are the asthmatics who, regardless of how compliant they are with their preventative medicines, still have bad asthma episodes. We don't know what bum luck would cause some asthmatics to get so bad, but some simply develop asthma that becomes difficult to control.

This can happen to any asthmatic from infant to adult. They see doctors on a regular basis. They are on all the state-of-the-art medicines (possibly even oral steroids), and yet still have asthma episodes regularly. They end up...