Since bacteria like tuberculosis and S. aureus become more and more drug-resistant over time, could they eventually evolve into a form smart enough to overwhelm our bodily immune systems? Would they then become identical to HIV/AIDS?
Infectious Diseases - 1 Answers
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These diseases will not become like AIDS because they are not AIDS. AIDS attacks the immune system directly. TB attacks mainly the respiratory system, and e coli attacks mainly the digestive system. Some years ago a strain of E coli did mutate to become a serious illness, killing some people. Usually E coli is a minor illness that resolves itself quickly or shows no symptoms at all. The bad strain is still in existence, but most of the E coli in the world is the minor kind. Well, it is not good for a disease organism to kill its host quickly, so these very severe acute illnesses tend to mutate back in the more minor direction, so they can continue to be spread around
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