Quotes About Waterborne

Snow also saw that people who drank only beer in regions with bad air had less cholera than people who drank water in regions with better air. These and other inferences led him to suspect that the illness was waterborne and linked to human waste.

Just as Snow was concocting his theory of cholera as a waterborne agent that had to be ingested to do harm, Chadwick was building an elaborate scheme that would deliver the cholera directly to the mouths of Londoners. (A modern bio-terrorist couldn't have come up with a more ingenious and far-reaching scheme).

That substance was a paralytic poison called saxitoxin that can be extracted from infected shellfish. It is related to the algae that cause red tide and other waterborne infections. In a highly concentrated dose, like the one compounded at Fort Detrick, it can kill within seconds.

More people living in less space can put greater strain on already limited sanitation resources, and this can create a fertile breeding ground for waterborne infectious disease and the insects spreading them.