t fever. It is a significant fact that the death-rate is
much higher among younger children, so that if, by carefully keeping
children from the possibility of infection, the disease can be postponed
until they are well along in years, the danger of fatal termination is
much reduced.

The following table, for instance, shows the number of deaths from
measles and scarlet fever at different ages, and it is very evident from
this table that if the former disease is contracted by a child under
five years old, the danger of death is four times as great as if it were
postponed until the child were ten years old:--

TABLE XIX. TABLE SHOWING DEATHS AND PERCENTAGES FROM MEASLES AND SCARLET
FEVER FOR DIFFERENT AGES IN UNITED STATES REGISTRATION AREA FOR 1907

====================================+=====================================
MEASLES | SCARLET FEVER
------------+----------+------------+-------------+----------+------------
| | Per cent of| | | Per cent of
Age Period | Number of| Total | Age Period | Number of| Total
| Deaths | Deaths | | Deaths | Deaths
------------+----------+------------+-------------+----------+------------
All ages | 4302 | 100 | All ages | 4309 | 100
Under 1 yr. | 1058 | 24 | Under 1 yr. | 175 | 4
1-2 yr. | 1315 | 31 | 1-2 yr. | 474 | 11
2-3 yr. | 626 | 14 | 2-3 yr. | 639 | 15
3-4 yr. | 343 | 8 | 3-4 yr. | 640 | 15
4-5 yr. | 189 | 4 | 4-5 yr. | 511 | 12
5-9 yr. | 350 | 8 | 5-9 yr. | 1213 | 30
10-14 yr | 89 | 2 | 10-14 yr. | 315 | 8
Under 5 yr. | 3531 | 82 | Under 5 yr. | 2439 | 58
Under 15 yr.| 3970 | 92 | Under 15 yr.| 3967 | 92
Over 5 yr. | 771 | 18 | Over 5 yr. | 1870 | 42
Over 15 yr. | 332 | 8 | Over 15 yr. | 342 | 8
============+==========+============+=============+==========+============

The table shows also that the dangerous age period for scarlet fever is
later than for measles. It indicates that while 82 per cent of all
deaths from measles are of children under five years of age, only 58 per
cent of the deaths from scarlet fever are in that period; but that th