The Washington times., 1910-11-26
MILK GERM KILLS,
WARNING OF EXPERT
DR.. Schroeder, of Animal Blu
reau, Says Commodity
Should Be PaSteuriZed.

Use a simple process OF milk pssteur-
ization in the home until the fight for
pure milk Is won. advises DR.. Z G
Schroeder, superintendent Of the expert
Enent station OF the Bureau of Animal
Industry of the Agricultural Depart
ment
He declares that more than per cent
Of all who suffer from tuberculosis are
infected through bovine sources, OF the
use OF dairy products
In an address before the Association
for the prevention OF Tuberculosis at It's
annual meeting at the Public Library
last night. DR. Schroeder related the his
tory OF the Investigation Of bovine
tubsrcle bactIli, and told his hearers that
there was no doubt about persons con-
tracing the disease from dairy products.
He gave facts and statistical evidence
to prove bis assertion.
For convenience he divided the subject
into four periods. The first was one Of
no definite knowledge he said, and the
second was marked by a discovery that
me diseased conditions in tuberculouS
humans and lower animals were alike
BaciIH Are Discovered.
In the next period, Dr. Schroeder con-
tinued, ;h'a tUbercIe bacillus was discov-
cred, and much was learned about its
charac.e-, growth and power. 1t was
learned. too. that when injected into
an animal the bacillus could cause tu-
bercuIosis-
The fourth period. classified as one of
doubt and confirmation. was notable for
me controversy caused By Dr. Robert
hoch declaration II 1901 thar 10 vas
uncertain n humans were eudauEered
By bovine Tuberculosis. DR.. Schroeder
said DIT. Koch had little else fuOn which,
An.=- HHs
bald smiths discovery In 1895 that hu-
man and lower animal tUberCle baCiIlt
were not alike.
But DR.. k0ch's declaration Of doubt
Or. Schroeder said, soon removed all
doubt. for hundreds Of investigators set
20 work on the problem. and the result
Vas absolute proof THAI bovine tubercie
bacilh VIII cause human tuberculosis.
As 10 the frequency OF infection from
bovine sources, Dr. Schroeder pointed
out the significance OF the fact that
more than one-fourth OF al children
under i've years old are affected
Danger Is Reduced.
Dr. Schroeder said the frequency or
tuberculosis among food-producing ami
mails was greatly reduced by the use Of
tuberculiu- BE said tuberculosis among
such animals In this country IS only
one-fourth as frequent az in similar
animals in Europe. due TO the country
not being so densely populated. and 10
! the fact that tUberCudn was nOt discgy-
| cred until the disease had become prar-
ticaly epidemic IN Europe. The sa me
conditions could prevail II this cOun-
try, however, If remedies TO check and
eradicate the disease were not taken, he
4 declared It was q problem Of rood con
servation-
Dr. William c Gwynn. chairman Of
the associations committee on educa-
ton, mapped out q campaign for fresh
air. and an investigation win be made
OF school rooms. street cars. ard thea
ters An exa animation Of conditions ex-
listing N alleys VII also be made
Eiisr Isabelle reported excellent work
done at the Tuberculosis Hospital. and
DR.. George NJ EOber discussed the work
AT tre Tuberculosis DisPensary-