[CAPTION] Long before the patients show up in hospitals, the germs silently accumulate in the wastewater beneath our cities. Image: Ashish Vaishnav/SOPA Images/LightRocket via Getty Images[/CAPTION] What if the sewage system running through your city's underbelly held secrets that could predict the next disease outbreak, even before a case has been reported? Sounds like science fiction, right? But it isn't. This is exactly what wastewater surveillance does. What is Wastewater Surveillance...