People can die from an infected tooth, from stepping on a nail and the following infection and from things like a blocked intestinal tract...
Doctors are not gods who can wave magic wands and magically cure everybody...
When you have a significantly large group of people one or more of that group will die from some problem that either is not recognized as a problem or the doctors dont diagnose correctly, of the poor fellow just does not respond the the treatment given...
They say that some 30% or so of all ICU deaths are from doctor/nurse errors of one form or another, what they call iatrogenic deaths, so even having the best medical care is no guarantee that you will survive the treatment...
