ances, the
symptoms increase in severity during the second or third week, the
patient becomes profoundly prostrated, the delirium deepens, and
death occurs. The hemorrhage from the bowels, in some instances, is
so severe that death is produced even in comparatively early stages
of the affection.

In many instances, through indiscretion, usually as a result of
eating solid food, patients who are apparently on the road to rapid
recovery, relapse, and the disease repeats the course already
detailed.

It is of importance to remember that now and then so-called walking
cases of typhoid fever occur, the disease in these instances being
characterized by the fact that the symptoms are so slight that the
sufferer does not feel it necessary to go to bed. However, in these
mild cases, fatal hemorrhage from the bowels is as frequent as in
the severer types, and as a consequence the patient should receive
careful attention. Moreover, it is of importance to remember that
from this mild form of the affection the most malignant varieties
of the disease may be contracted.

The mortality in typhoid fever varies from five to twenty per
cent., depending upon the character of the disease and the nature
of the nursing and treatment that the patient receives.

_Modes of Infection._--It is clear that typhoid fever is the result of
the entrance into the body of some minute form of germ-life, whether this
be the bacterium generally supposed to induce the disease or not. This
contagion is beyond question a living something which multiplies with
great rapidity under proper conditions, and, escaping from the bodies of
those infected with the disease, in one way or another, reaches other
individuals. It is beyond question true that the virus passes from the
body of those infected by means of the urine and feces, and it is likely
that the secretions from the mouth and nose frequently contain the germs
that cause the fever.

As the germs are certainly extraordinarily minute, a very small amount of
any of these excretions might produce the disease in healthy individuals
if it were to get into their bodies through water, milk, or any uncooked
food, or if it were to find lodgment about the nose or mouth, or get upon
the hands of other persons. It should also be remembered that the virus
may easily get upon cooking-utensils, drinking-cups, bed-lin