http://www.pbs.org/wgbh/evolution/library/10/4/l_104_03.html
Around 50 years ago society thought that antibiotics were the final answer to healing the ill and stopping the spread of disease, but within the past few decades we find this answer to be fleeting. Whenever someone uses antibiotics, a few germs survive and become resistant to the antibiotic. This happens especially when the drugs are cut off prematurely. Whenever antibiotics are used when are they are not needed or incorrectly, the resistant strains evolve and multiply creating stronger and more potent diseases. This video shows an example of the evolution of antibacterial resistance in order to better illustrate the issue.
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