Abstract

Domestic wastewater pollution in environmental waters or water reuse supplies represents a threat to public health because of high concentrations of diverse pathogens associated with human excreta [1]. Since it is difficult to directly measure waterborne pathogens of concern, microbial water quality monitoring efforts often use surrogates or indicator organisms that are easily detected and whose presence reflects pathogen persistence [2]. Here, we describe an unconventional viral indicator of wastewater pollution, pepper mild mottle virus (PMMoV), a plant pathogen that was first proposed as a water quality indicator in 2009 [3] and promises to improve microbial water quality management worldwide [4].

Highlights

  • Domestic wastewater pollution in environmental waters or water reuse supplies represents a threat to public health because of high concentrations of diverse pathogens associated with human excreta [1]

  • We describe an unconventional viral indicator of wastewater pollution, pepper mild mottle virus (PMMoV), a plant pathogen that was first proposed as a water quality indicator in 2009 [3] and promises to improve microbial water quality management worldwide [4]

  • The most abundant RNA virus identified in the feces of healthy individuals was PMMoV [6], which has been readily identified in untreated wastewater from numerous locations

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Summary

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Citation: Symonds EM, Rosario K, Breitbart M (2019) Pepper mild mottle virus: Agricultural menace turned effective tool for microbial water quality monitoring and assessing (waste)water treatment technologies. PLoS Pathog 15(4): e1007639. https://doi.org/10.1371/journal. ppat.1007639 Editor: Katherine R. Spindler, University of Michigan Medical School, UNITED STATES Funding: This work was funded by grant OCE1566562 from the US National Science Foundation. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author (s) and do not necessarily reflect the views of the US National Science Foundation. Competing interests: The authors have declared that no competing interests exist.

Introduction
Why is PMMoV found in human feces and wastewater?
Findings
How can we better exploit PMMoV to safeguard public health?

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