Scientific explanation as to why our soil is not overburdened with drug remnants...and some antibiotics are derived from soil...BD
WASHINGTON - Antibiotics for breakfast? The drugs are supposed to kill bacteria, not feed them. Yet Harvard researchers have discovered hundreds of germs in soil that literally gobble up antibiotics, able to thrive with the potent drugs as their sole source. These bacteria outwit antibiotics in a disturbingly novel way, and now the race is on to figure out just how they do it — in case more dangerous germs that sicken people could develop the same ability. On the other hand, the work explains why the soil doesn't harbor big antibiotic buildups despite use of the drugs in livestock plus human disposal and, well, excretion, too.
Nor is it a surprise that soil bacteria can withstand some antibiotics; some had already been found. After all, a number of antibiotics are natural — think penicillin. Some antibiotics have been derived from soil.
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