As most bacteria evolve to a less deatly version of itself to promote spreading, why hasn’t TB evolved to a more harmless bacteria? It’s so old, so there was plenty of time. Killing the host seems pointless in a evolutionary sense.
Thanks!
In: Biology
It doesn’t have to evolve into a harmless bacteria. Its very successful at living and spreading. It takes years for TB to kill someone. Its able to spread to hundreds of new hosts in that time. All it needs to do is spread before the host dies. Consider that this actually could be a less deadly version of what it once was millennia ago.
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