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Chapter 10. Restricting Antibiotic Use a... > Antibiotic Contamination of the Envi...

Antibiotic Contamination of the Environment Is a Byproduct of Usage

Many antibiotics are not easily destroyed when they escape into the environment. Consequently, we could be creating a huge reservoir of antibiotic-resistant microbes and resistance genes in our soil, rivers, and lakes by dumping medical and agricultural waste198 (see Box 10-4). Although gene exchange among microbes occurs only rarely, even rare events can be significant when astronomically large numbers of microbes are involved.


Box 10-4: Contamination of Drinking Water

In March 2008, the Associated Press reported that a vast array of pharmaceuticals—antibiotics, anticonvulsants, mood stabilizers, and sex hormones—were found in drinking water supplies for more than 41 million Americans. In Philadelphia, officials identified 56 pharmaceuticals or byproducts in treated drinking water. These compounds included medicines for pain, infection, high cholesterol, asthma, epilepsy, mental illness, and heart problems; 63 pharmaceuticals or byproducts were found in the city’s watersheds.


  

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