The risk of a person contracting an infectious disease is almost always directly related to the amount of that disease in the community. The amount of infectious disease in a community can be tracked by measuring the concentration of pathogens shed into that community's wastewater. This practice is called wastewater-based epidemiology, and this site provides the daily infection dynamics of several respiratory, gastrointestinal, and vector borne diseases in New Haven, Connecticut, USA. We identify when outbreaks occur and when outbreaks recede. This data is useful to health authorities, business, schools, and the general public for identifying currently circulating diseases and the timing of their outbreaks so that we all can better manage our risk.