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Updated: May 7, 2025
Slight ailments, such as colds, which inflame the mucous membrane, will decrease its resisting power and render the individual more susceptible to the entrance of any pathogenic germs should they happen to be present. Sores in the mouth or decayed teeth may in the same way be prominent factors in the individual's susceptibility.
Its pathogenic powers can sometimes be restored by passing it again through some susceptible animal. One of the most violent pathogenic bacteria is that which produces anthrax, but this loses its pathogenic powers if it is cultivated for a considerable period at a high temperature.
We can easily render food free from pathogenic bacteria by heating it.
Some are believed to be transmissible to the unborn child; and a few are ordinarily harmless parasites, becoming pathogenic only when they accidentally gain access to other parts of the system than those which constitute their natural habitat.
Such bacteria are therefore not pathogenic germs, and not sources of trouble to human health. There are, on the other hand, a few species of bacteria which may be able to retain their lodgment in the body m spite of this attempt of the individual to get rid of them.
These two classes are, first, the pathogenic bacteria, which are not strictly parasitic but live free in Nature; and, second, those which live as true parasites in the bodies of man or other animals. To understand the real relation of these two classes, we must first notice the method by which bacteria in general produce disease.
But doctors instinctively avoid all facts that are reassuring, and eagerly swallow those that make it a marvel that anyone could possibly survive three days in an atmosphere consisting mainly of countless pathogenic germs. They conceive microbes as immortal until slain by a germicide administered by a duly qualified medical man.
How can a sane man forgive himself for advocating inoculation by disease germs to cause immunization when by the use of health germs the health could be built so strong that the pathogenic germs would have no show.
The actinomyces is more complex in structure than other pathogenic organisms, and occurs in the tissues in the form of small, round, semi-translucent bodies, about the size of a pin-head or less, and consisting of colonies of the fungus. On account of their yellow tint they are spoken of as "sulphur grains."
The water in that spring, and I'll be perfectly frank the water in most of the surface springs in this particular locality, is simply swarming with pathogenic germs, and amongst them I identified this morning the as yet unnamed coccus which I had the honour to discover, and which is as deadly as the coma bacillus of Asiatic cholera, or shall I say? the highly specialised venom of the rattlesnake."
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