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Pathogen and indicator trends in southern Nevada wastewater during and after the COVID-19 pandemic

Environmental Science: Water Research and Technology, ISSN: 2053-1419
2024
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    Citations
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    Usage
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    Social Media
Metric Options:   Counts1 Year3 Year

Metrics Details

  • Captures
    2
  • Mentions
    1
    • News Mentions
      1
      • News
        1

Most Recent News

New Findings from Southern Nevada Water Authority in the Area of COVID-19 Described (Pathogen and Indicator Trends In Southern Nevada Wastewater During and After the Covid-19 Pandemic)

2025 JAN 02 (NewsRx) -- By a News Reporter-Staff News Editor at NewsRx COVID-19 Daily -- Investigators publish new report on Coronavirus - COVID-19. According

Article Description

Characterization of wastewater concentrations of human enteric pathogens and human fecal indicators provides valuable insights and data for use by regulators and other stakeholders when developing treatment criteria for water reuse applications, performing quantitative microbial risk assessments, or conducting microbial source tracking. Wastewater samples collected over three years during and after the COVID-19 pandemic were analyzed retrospectively (March 2020-September 2022) and prospectively (October 2022-December 2023) by qPCR for molecular markers of adenovirus, enterovirus, norovirus GI & GII, as well as the human fecal indicators pepper mild mottle virus, crAssphage, and HF183 (n = 1112). A sub-campaign was conducted, and wastewater samples were tested for the culturable enteric viruses adenovirus and enterovirus (n = 56) and the protozoan parasites Cryptosporidium and Giardia (n = 73) over one year (January-December 2023). All assays had high detection rates, ranging from 71% to 100%, and were fit to log-normal distributions. All molecular markers for enteric pathogens displayed seasonal and geographic variation, potentially explained by seasonal epidemiology of gastrointestinal illness, differing populations, and differing sample types. Additionally, the impact of Nevada-specific COVID-19 public health guidance (e.g., mask mandates, stay-at-home orders) on enteric pathogen concentrations was characterized, with significantly higher concentrations of molecular markers observed in “non-pandemic” conditions. This study provides high quality (i.e., high sensitivity, minimally censored, recovery adjusted) pathogen and indicator datasets with insights for use in academic, public health/epidemiological, and industry/regulatory applications.

Bibliographic Details

Katherine Crank; Katerina Papp; Casey Barber; Kai Chung; Emily Clements; Wilbur Frehner; Deena Hannoun; Travis Lane; Christina Morrison; Phillip Wang; Daniel Gerrity; Bonnie Mull; Edwin Oh

Royal Society of Chemistry (RSC)

Environmental Science

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