When sewage and waste water is treated before
being released into local waterways or used as fertilizer, the vast
majority of bacteria are removed; but not all.
Hospitals are natural repositories of multiple
antibiotic resistant bacteria. Researchers in France discovered that
treated hospital waste water contained significant levels of drug
resistant bacteria; the treatment only removed 94% of these (while
removing 98% of others).
Swimming in these waters and possible
contamination of foods with more toxic bacteria may result if this is
not monitored properly. On the other hand this has not yet happened so
it may just be an interesting finding.
The hospital pictured here is the one where I was born at!
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