Wastewater analyses point to sexually transmitted diseases — such as chlamydia — near a college campus where few cases had been reported https://medicalxpress.com/news/2026-09-sewers-reveal-chlamydia-college-campus.html Wastewater-Based Epidemiology of Sexually Transmitted Pathogens Across Scales https://pubs.acs.org/aewcaa/article/doi/10.1021/acsestwater.6c00486/5250418/Wastewater-Based-Epidemiology-of-Sexually