Both Good and Bad | GenomeWeb

Both Good and Bad

It used to be, a New Scientist editorial says, that bacteria were either good or bad. They either helped us digest our food or they made us sick.

Increasingly, though, bacteria seem to be able to do both. For instance, the New Scientist points out that Mycobacterium tuberculosis, which causes the disease tuberculosis, has also been implicated in allowing people to evolve large brains.

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