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Reply #34: Infectious diseases evolve but they seldom help their host organisms [View All]

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Silent3 Donating Member (1000+ posts) Send PM | Profile | Ignore Mon Apr-04-11 09:22 PM
Response to Reply #1
34. Infectious diseases evolve but they seldom help their host organisms
Edited on Mon Apr-04-11 10:20 PM by Silent3
If an infectious disease becomes too potent that can be a self-defeating turn in the evolution of that disease, if that potency ends up killing off all suitable host organisms.

That doesn't mean, however, that an infectious disease can't be a serious detriment to the host species. A disease can still cause a great deal of suffering and death so long as the host species manages to survive just well enough to keep providing new generations of host organisms.

The analogy here with religion isn't an analogy with the genetic evolution of a host species, the kind of evolution that produces an eye, but the genetic evolution of a disease, the kind of evolution that produces a new strain of influenza.
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