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Hence in A it is first necessary to procure bile
from animals which have died from the disease, in B the
inoculation to be a success must cause a certain amount
of sickness (possibly death) to the animal, for which
reason it is hardly a system likely to be favoured by the
Chinese, while in C the method would probably be productive
of good results, and meet without little opposition from
the natives when they once became used to it.
To illustrate the action of the third
process C I give the following examples. 1. An outbreak of
rinderpest occurs in a herd of say twenty animals. Two
show distinct signs of the disease. Inoculate the whole
herd at once with serum. The eighteen will not contract
time
the disease if not infected at the of inoculation, and
the remaining two infected ones, if taken in time might
also be cured. 2. A second herd of twenty healthy animals
may be housed in close proximity to the infected
herd- inoculate all those at once with serum and they
would be protected.
(Sd.) C.V.Ladds.
14/3/1900.
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