The Minneapolis journal. [volume] (Minneapolis, Minn.) 1888-1939, 1905-07-08

dangerous, TO the IeSC OF SLne cattle IN
the herd, and the necessary precautions
cit occasionally happens that ami
mails badly diseased or in an excited
condition from varions causes have a
high temperature, at. the time Of injec-
reaction to tuberculin. In these cases,
however. the disease is usually SO far
advanced that it can be. detected very
readily upon physical examination.
These exceptions cannot be used as
objections to the utility Of tuberculin,
and do not depreciate its value in the
slightest degree. It also occasionally
affected with disease will not react, or
i animals which upon: post mortem an
pear perfectly healthy have shown re-
action s>, %1i.
mThe eminent veterinarian Nocard
and others, however, claim that, in all
terms have been made upon animals
which had reacted to the tuberculin
test but did not show marked most
mortem LESSONS, they have demonstrated
that the. germ of the disease was pres
ent IN the system and had Just begun
m 1as tdeveoRmenbt 10 this the
alton and incubation tests are neces-
sary. The tuherculin test. il is trne ;s
not infallible, but the distakes which
may occur from it's use are so few.
and a; 1t is SO much more nearly perfect
lnan any other method that we have at
hand that for practical purposes it NAV
be considered sure. While It NAV be-
many. years before tuberculosis can he
practically eradicated from herds. and
while it would require many stringent
state and national regulations to sue
coed in stamping it out, nevertheless by
the use OF tuberculin and proper meth
eds OF disinfection of stables and other
localities which have been. Infected by
diseased animals it will be possible. in
a comparatively short time. to greatly
reduce the number of cases of this dis
ease. DR.. Pearson s report to the Penn
sylVan!a board of health indicates a
ieauctl9n or 50 per cent in cases of
tuberculosis in that state.
- AS tuberculosis in animals is re.
duced, 80 will the disease in man be
proportionately decreased. There is
every evidence to prove conclusivejy
that man may be infected with tubereu-
losls by drinking the milk from tuber-
cuious animals. Recent work, combine
with many. experiments that have been
, conducted IN past Years, has shown that
the tubercle germ OF human origin or
the tubercle germ Of animal origin can
ADAPT itself very readily to its surround
lngs and grow upon different Va
r1etles, of media, and at different tenn
peratures without its pathogenic or dig;
ease-pTzod9,uc1ng properties being de-
Conclusions Of John R. Mohler, bu-
reau OF animal industry, on Indebtedness
Of milk of cases which have reacted
:: to the tuberculin TEST; &. =
me result of the first tuberculin
test OF lO2 cows shows a decisive reac-
ton in rs animals, with COW giyinp
a suspicious rise. The second test gave
typical reactions out Of 26 cattle in.
Jected.. The third test demonstrated
that the IL cows tested were without
the slightest suspicion of tuberculosis
Thus, out of LAG individual injections
but 1 reaction was considered .ques
tlonable, and; as before mentioned, the
post-mortem on this animal indicated
that the cause Of the uncertain rise
was probably occasioned by either the
7 minute size of the LESSONS or the ten
dency toward the encapsulation, OF
/ both. It seems apparent from the re
suits OF the post-mortem held on the
> cows which reacted to the second
;. test that these animals were either not
} diseased at the time Of the first test
!, or, 1t so, to such a slight degree az
9 to render detection impossible by any
:, known means. In no case where an an
: imal reacted to the tuberculin test die
l the post-mortem fail to show that the
v culosis. The remaining Is non-reactins
;. cows are in good, thrifty condition, ant
: may be presumed to be healthy after
. passing three tuberculin tests, without
9 giving the least suspicion Of a rising
: temperature. The length of the perioC
between the injection Of the tuberculi1
: and the following reaction varied from
9 eight to eighteen hours and COW No
. 70 is an excellent example of an ami
8 NAL that might be passed as sound i
: the subsequent temperatures are no
: followed for at least eighteen hour
: after the injection. Finally, the re
: suits obtained from the test of thes
: COWS support the good reputation which
D tuberculin merits as a diagnosti
r agent. Ks
: The Conclusions.
= From the results of the experiment
q conducted in the laboratory, as well a
y lions quoted in this article, the follow
: ing conclusions regarding the infec
tiousness Of milk from tuberculous COW
seems justifable:
FirstlThe tubercle bacillus may b
demonstrated in milk from tuberculou
: cows when the udders show no per
e ceptible evidence of disease, either ma
J. croscopically or microscop1cally.
y Second-Thez bacillus Of tuberculosi
-
. sufficient numbers to produce infection
e in experimental animals, both by ingestiol
and incubation.
;, Third-That In cows suffering from
q tuberculosis the udder may, therefore
q become affected at any moment.
Il Fourth-The presence of the tubercl
+ bacillus In the milk Of tuberculou
+ cows is not constant. but varies fror
l. day to day.
t Fifth-Cows secreting virulent milk ma
o be affected with tuberculosis to de
IS gree that can be detected only by tn
9 tuberculin test.
81 sixth-The physical examination or gen
q eral appearance Of the animal cannot fore
, tell the Effectiveness Of the milk.
y Seventh-The milk of all cows whic
s have reacted to the tuberculin. test shoul
be considered as suspicious and shoul
2 be subjected to sterilization before usil
\ Eighth-Stil1 better, tuberculous COW
n should not be used for general dairy pur
a poses. -P. M. Hall.
n Ministers, lawyers, teachers and otl
= ers whose occupation give but littl
). exercise, should use Carter q Little Ii,
t, er Pills for torpid liver and biliou