In the chapter on fowl cholera is described how Pasteur first obtained his attenuated virus.
Thus, then, as in fowl cholera, attenuated cultures of the microbe can be obtained.
Now, it is remarkable that this medium is quite unsuited to the life of the microbe of fowl cholera.
This is a disease similar to fowl cholera and may attack either young or mature geese.
Like the bacillus of splenic fever, the microbe of the fowl cholera is an aerobic organism.
The decoction extracted from the muscles of the fowl is the only medium which really suits the microbe of fowl cholera.
Between this microbe and the microbe of fowl cholera there exists an essential difference.
fowl cholera offers the same immunity; it is an additional scientific acquisition, but not a novelty in principle.
This he also proved to be caused by a minute form of life, and that fowl cholera is due to still another form of micro-organism.
The microbe of fowl cholera, as is the case with a great number of microscopic organisms, reproduces itself only by fission.