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Reproductive Tract Infections Research · Journal article
Acs Es&t Water · August 7, 2026
Early or partial results. Treat as a signal, not a conclusion.
This is a descriptive wastewater-based epidemiology study characterizing the detection and concentration of three sexually transmitted bacterial pathogens (C. trachomatis, N. gonorrhoeae, T. pallidum) across multiple sewersheds and neighborhoods in Washington State. The work establishes feasibility and reveals substantial variation in pathogen detection and concentration by geography and population size, with preliminary evidence of potential underreporting of chlamydia cases in some neighborhoods.
Descriptive wastewater surveillance study. Wastewater from sewersheds of varying population size and six neighborhoods within Seattle, Washington State, USA.. Intervention: Multiplex digital PCR characterization of wastewater for STI pathogens. Washington State, USA, with detailed sampling across six neighborhoods in Seattle..
C. trachomatis detected in 42–88% of wastewater treatment plant influent samples and 13–80% of Seattle neighborhood samples N. gonorrhoeae detected in 0–11% of WWTP and neighborhood samples T. pallidum detected in 0–18% of WWTP and neighborhood samples
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This work establishes the feasibility and geographic patterns of wastewater surveillance for STIs, suggesting that wastewater monitoring may detect underreported cases and could inform targeted public health responses. However, the utility for individual clinical decision-making remains unclear; the findings are primarily actionable at the population surveillance level.
This is a descriptive wastewater surveillance study characterizing detection of three STI pathogens across geographic scales; it lacks a clinical outcome, comparator, or causal hypothesis, and serves to establish feasibility and patterns rather than test an intervention or confirm a clinical effect.
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Quoted from the source exactly as published.
This work establishes the feasibility and geographic patterns of wastewater surveillance for STIs, suggesting that wastewater monitoring may detect underreported cases and could inform targeted public health responses. However, the utility for individual clinical decision-making remains unclear; the findings are primarily actionable at the population surveillance level.
Graded across the dimensions that decide whether you should act, each from what the source actually supports. There is no single score, and where a dimension was not assessed it says so.
Abstract Wastewater-based epidemiology for sexually transmitted pathogens Chlamydia trachomatis (chlamydia), Neisseria gonorrhoeae (gonorrhea), and Treponema pallidum (syphilis) is sparse compared to viral targets despite their public health significance. We used multiplex, digital PCR to characterize C. trachomatis, Neisseria gonorrhoeae, and T. pallidum across multiple sewersheds and neighborhoods in Washington State, USA. We examined wastewater treatment plant (WWTP) influent from sewersheds that serve populations from less than 5000 people to over 100,000 people. To capture higher spatial resolution, we also sampled six neighborhoods within the city of Seattle. The most abundant pathogen, C. trachomatis was detected in 42–88% of samples across WWTP influent sites and between 13 and 80% of samples across Seattle neighborhoods. The concentration of C. trachomatis was highest in the smallest WWTP and neighborhood that contained a college campus. We observed potential underreporting of chlamydia cases across Seattle neighborhoods when comparing wastewater concentrations to case data. N. gonorrhoeae (NG) and T. pallidum (TP) were detected in few WWTP or neighborhood samples (NG 0–11% and TP 0–18% of WWTPs and neighborhood samples). We recommend considering the temporality of disease, disease burden, and demographics when identifying suitable sewersheds to monitor for STIs to maximize public health actionability.
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