Here in Boston, the agency in charge of sewage treatment has contracted with a fellow Greentown Labs startup (Biobot) to monitor COVID-19 viral RNA levels in sewage. This is a brilliant new technique that provides an excellent early warning sign for public health events.

I combined their dataset with hospitalization data from the state. The state data includes many hospital beds that are not part of the MWRA sewage system, but you get the idea:

Graph of MWRA viral RNA levels vs COVID hospital beds

Basically, we’re in big trouble.