1
|
Li J, Choi PM, Gao J, Ren J, O'Brien JW, Thomas KV, Mueller JF, Thai PK, Jiang G. In-sewer stability of 31 human health biomarkers and suitability for wastewater-based epidemiology. Water Res 2024; 249:120978. [PMID: 38071905 DOI: 10.1016/j.watres.2023.120978] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/27/2023] [Revised: 11/16/2023] [Accepted: 12/05/2023] [Indexed: 01/03/2024]
Abstract
Monitoring urinary markers of dietary, disease, and stress by wastewater-based epidemiology (WBE) is a promising tool to better understand population health and wellbeing. However, common urinary biomarkers are subject to degradation in sewer systems and their fates have to be assessed before they can be used in WBE. This study investigated the stability of 31 urinary biomarkers (12 food biomarkers, 8 vitamins, 9 oxidative stress biomarkers, and 1 histamine biomarker) in a laboratory sewer sediment reactor and evaluated their suitability for WBE, considering their detectability in real wastewater and in-sewer stability. These biomarkers showed various transformation patterns, among which 16 compounds had half-lives <2 h while other 15 compounds presented moderate to high stability (2 to >500 h). Thirteen biomarkers showed potential for WBE because of their consistently measurable concentrations in untreated wastewater and sufficient in-sewer stability. Eighteen biomarkers were unsuitable due to their rapid in-sewer degradation and/or undetectable concentration levels in untreated wastewater using previous methods. Transformation rates of these biomarkers showed generally weak relationships with molecular properties but relatively higher correlations with biological activities in sewers. Overall, this study determined in-sewer stability of 31 health-related biomarkers through laboratory experiments, providing new findings to WBE for population health assessment.
Collapse
Affiliation(s)
- Jiaying Li
- Queensland Alliance for Environmental Health Sciences (QAEHS), The University of Queensland, 20 Cornwall Street, Woolloongabba, QLD 4103, Australia
| | - Phil M Choi
- Queensland Alliance for Environmental Health Sciences (QAEHS), The University of Queensland, 20 Cornwall Street, Woolloongabba, QLD 4103, Australia; Water Unit, Health Protection and Regulation Branch, Queensland Public Health and Scientific Services, Queensland Health, Herston, QLD 4006, Australia
| | - Jianfa Gao
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen 518055, China
| | - Jianan Ren
- Queensland Alliance for Environmental Health Sciences (QAEHS), The University of Queensland, 20 Cornwall Street, Woolloongabba, QLD 4103, Australia
| | - Jake W O'Brien
- Queensland Alliance for Environmental Health Sciences (QAEHS), The University of Queensland, 20 Cornwall Street, Woolloongabba, QLD 4103, Australia; Van 't Hoff Institute for Molecular Sciences (HIMS), University of Amsterdam, Netherlands
| | - Kevin V Thomas
- Queensland Alliance for Environmental Health Sciences (QAEHS), The University of Queensland, 20 Cornwall Street, Woolloongabba, QLD 4103, Australia
| | - Jochen F Mueller
- Queensland Alliance for Environmental Health Sciences (QAEHS), The University of Queensland, 20 Cornwall Street, Woolloongabba, QLD 4103, Australia
| | - Phong K Thai
- Queensland Alliance for Environmental Health Sciences (QAEHS), The University of Queensland, 20 Cornwall Street, Woolloongabba, QLD 4103, Australia.
| | - Guangming Jiang
- School of Civil, Mining, Environmental and Architectural Engineering, University of Wollongong, Australia
| |
Collapse
|
2
|
Shyu HY, Castro CJ, Bair RA, Lu Q, Yeh DH. Development of a Soft Sensor Using Machine Learning Algorithms for Predicting the Water Quality of an Onsite Wastewater Treatment System. ACS Environ Au 2023; 3:308-318. [PMID: 37743952 PMCID: PMC10515708 DOI: 10.1021/acsenvironau.2c00072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Revised: 06/13/2023] [Accepted: 06/14/2023] [Indexed: 09/26/2023]
Abstract
Developing advanced onsite wastewater treatment systems (OWTS) requires accurate and consistent water quality monitoring to evaluate treatment efficiency and ensure regulatory compliance. However, off-line parameters such as chemical oxygen demand (COD), total suspended solids (TSS), and Escherichia coli (E. coli) require sample collection and time-consuming laboratory analyses that do not provide real-time information of system performance or component failure. While real-time COD analyzers have emerged in recent years, they are not economically viable for onsite systems due to cost and chemical consumables. This study aimed to design and implement a real-time remote monitoring system for OWTS by developing several multi-input and single-output soft sensors. The soft sensor integrates data that can be obtained from well-established in-line sensors to accurately predict key water quality parameters, including COD, TSS, and E. coli concentrations. The temporal and spatial water quality data of an existing field-tested OWTS operated for almost two years (n = 56 data points) were used to evaluate the prediction performance of four machine learning algorithms. These algorithms, namely, partial least square regression (PLS), support vector regression (SVR), cubist regression (CUB), and quantile regression neural network (QRNN), were chosen as candidate algorithms for their prior application and effectiveness in wastewater treatment predictions. Water quality parameters that can be measured in-line, including turbidity, color, pH, NH4+, NO3-, and electrical conductivity, were selected as model inputs for predicting COD, TSS, and E. coli. The results revealed that the trained SVR model provided a statistically significant prediction for COD with a mean absolute percentage error (MAPE) of 14.5% and R2 of 0.96. The CUB model provided the optimal predictive performance for TSS, with a MAPE of 24.8% and R2 of 0.99. None of the models were able to achieve optimal prediction results for E. coli; however, the CUB model performed the best with a MAPE of 71.4% and R2 of 0.22. Given the large fluctuation in the concentrations of COD, TSS, and E. coli within the OWTS wastewater dataset, the proposed soft sensor models adequately predicted COD and TSS, while E. coli prediction was comparatively less accurate and requires further improvement. These results indicate that although water quality datasets for the OWTS are relatively small, machine learning-based soft sensors can provide useful predictive estimates of off-line parameters and provide real-time monitoring capabilities that can be used to make adjustments to OWTS operations.
Collapse
Affiliation(s)
- Hsiang-Yang Shyu
- Civil & Environmental
Engineering, University of South Florida, 4202 E. Fowler Avenue, Tampa, Florida 33620, United States
| | - Cynthia J. Castro
- Civil & Environmental
Engineering, University of South Florida, 4202 E. Fowler Avenue, Tampa, Florida 33620, United States
| | - Robert A. Bair
- Civil & Environmental
Engineering, University of South Florida, 4202 E. Fowler Avenue, Tampa, Florida 33620, United States
| | - Qing Lu
- Civil & Environmental
Engineering, University of South Florida, 4202 E. Fowler Avenue, Tampa, Florida 33620, United States
| | - Daniel H. Yeh
- Civil & Environmental
Engineering, University of South Florida, 4202 E. Fowler Avenue, Tampa, Florida 33620, United States
| |
Collapse
|
3
|
Keshaviah A, Huff I, Hu XC, Guidry V, Christensen A, Berkowitz S, Reckling S, Noble RT, Clerkin T, Blackwood D, McLellan SL, Roguet A, Musse I. Separating signal from noise in wastewater data: An algorithm to identify community-level COVID-19 surges in real time. Proc Natl Acad Sci U S A 2023; 120:e2216021120. [PMID: 37490532 PMCID: PMC10401018 DOI: 10.1073/pnas.2216021120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Accepted: 06/11/2023] [Indexed: 07/27/2023] Open
Abstract
Wastewater monitoring has provided health officials with early warnings for new COVID-19 outbreaks, but to date, no approach has been validated to distinguish signal (sustained surges) from noise (background variability) in wastewater data to alert officials to the need for heightened public health response. We analyzed 62 wk of data from 19 sites participating in the North Carolina Wastewater Monitoring Network to characterize wastewater metrics around the Delta and Omicron surges. We found that wastewater data identified outbreaks 4 to 5 d before case data (reported on the earlier of the symptom start date or test collection date), on average. At most sites, correlations between wastewater and case data were similar regardless of how wastewater concentrations were normalized and whether calculated with county-level or sewershed-level cases, suggesting that officials may not need to geospatially align case data with sewershed boundaries to gain insights into disease transmission. Although wastewater trend lines captured clear differences in the Delta versus Omicron surge trajectories, no single wastewater metric (detectability, percent change, or flow-population normalized viral concentrations) reliably signaled when these surges started. After iteratively examining different combinations of these three metrics, we developed the Covid-SURGE (Signaling Unprecedented Rises in Groupwide Exposure) algorithm, which identifies unprecedented signals in the wastewater data. With a true positive rate of 82%, a false positive rate of 7%, and strong performance during both surges and in small and large sites, our algorithm provides public health officials with an automated way to flag community-level COVID-19 surges in real time.
Collapse
Affiliation(s)
| | - Ian Huff
- Mathematica, Inc., Princeton, NJ 08543
| | | | - Virginia Guidry
- North Carolina Department of Health and Human Services, Division of Public Health, Raleigh, NC 27609
| | - Ariel Christensen
- North Carolina Department of Health and Human Services, Division of Public Health, Raleigh, NC 27609
| | - Steven Berkowitz
- North Carolina Department of Health and Human Services, Division of Public Health, Raleigh, NC 27609
| | - Stacie Reckling
- North Carolina Department of Health and Human Services, Division of Public Health, Raleigh, NC 27609
| | - Rachel T Noble
- Institute of Marine Sciences, University of North Carolina-Chapel Hill, Morehead City, NC 28557
| | - Thomas Clerkin
- Institute of Marine Sciences, University of North Carolina-Chapel Hill, Morehead City, NC 28557
| | - Denene Blackwood
- Institute of Marine Sciences, University of North Carolina-Chapel Hill, Morehead City, NC 28557
| | - Sandra L McLellan
- School of Freshwater Sciences, University of Wisconsin-Milwaukee, Milwaukee, WI 53204
| | - Adélaïde Roguet
- School of Freshwater Sciences, University of Wisconsin-Milwaukee, Milwaukee, WI 53204
| | | |
Collapse
|
4
|
Liguori K, Calarco J, Maldonado Rivera G, Kurowski A, Keenum I, Davis BC, Harwood VJ, Pruden A. Comparison of Cefotaxime-Resistant Escherichia coli and sul1 and intI1 by qPCR for Monitoring of Antibiotic Resistance of Wastewater, Surface Water, and Recycled Water. Antibiotics (Basel) 2023; 12:1252. [PMID: 37627672 PMCID: PMC10451376 DOI: 10.3390/antibiotics12081252] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 07/23/2023] [Accepted: 07/26/2023] [Indexed: 08/27/2023] Open
Abstract
Awareness of the need for surveillance of antimicrobial resistance (AMR) in water environments is growing, but there is uncertainty regarding appropriate monitoring targets. Adapting culture-based fecal indicator monitoring to include antibiotics in the media provides a potentially low-tech and accessible option, while quantitative polymerase chain reaction (qPCR) targeting key genes of interest provides a broad, quantitative measure across the microbial community. The purpose of this study was to compare findings obtained from the culture of cefotaxime-resistant (cefR) Escherichia coli with two qPCR methods for quantification of antibiotic resistance genes across wastewater, recycled water, and surface waters. The culture method was a modification of US EPA Method 1603 for E. coli, in which cefotaxime is included in the medium to capture cefR strains, while qPCR methods quantified sul1 and intI1. A common standard operating procedure for each target was applied to samples collected by six water utilities across the United States and processed by two laboratories. The methods performed consistently, and all three measures reflected the same overarching trends across water types. The qPCR detection of sul1 yielded the widest dynamic range of measurement as an AMR indicator (7-log versus 3.5-log for cefR E. coli), while intI1 was the most frequently detected target (99% versus 96.5% and 50.8% for sul1 and cefR E. coli, respectively). All methods produced comparable measurements between labs (p < 0.05, Kruskal-Wallis). Further study is needed to consider how relevant each measure is to capturing hot spots for the evolution and dissemination of AMR in the environment and as indicators of AMR-associated human health risk.
Collapse
Affiliation(s)
- Krista Liguori
- Via Department of Civil and Environmental Engineering, Virginia Tech, Blacksburg, VA 24060, USA (G.M.R.); (B.C.D.)
| | - Jeanette Calarco
- Department of Integrative Biology, University of South Florida, Tampa, FL 33620, USA (V.J.H.)
| | - Gabriel Maldonado Rivera
- Via Department of Civil and Environmental Engineering, Virginia Tech, Blacksburg, VA 24060, USA (G.M.R.); (B.C.D.)
| | - Anna Kurowski
- Via Department of Civil and Environmental Engineering, Virginia Tech, Blacksburg, VA 24060, USA (G.M.R.); (B.C.D.)
| | - Ishi Keenum
- Via Department of Civil and Environmental Engineering, Virginia Tech, Blacksburg, VA 24060, USA (G.M.R.); (B.C.D.)
| | - Benjamin C. Davis
- Via Department of Civil and Environmental Engineering, Virginia Tech, Blacksburg, VA 24060, USA (G.M.R.); (B.C.D.)
| | - Valerie J. Harwood
- Department of Integrative Biology, University of South Florida, Tampa, FL 33620, USA (V.J.H.)
| | - Amy Pruden
- Via Department of Civil and Environmental Engineering, Virginia Tech, Blacksburg, VA 24060, USA (G.M.R.); (B.C.D.)
| |
Collapse
|
5
|
Abia ALK, Baloyi T, Traore AN, Potgieter N. The African Wastewater Resistome: Identifying Knowledge Gaps to Inform Future Research Directions. Antibiotics (Basel) 2023; 12:805. [PMID: 37237708 PMCID: PMC10215879 DOI: 10.3390/antibiotics12050805] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Revised: 04/20/2023] [Accepted: 04/21/2023] [Indexed: 05/28/2023] Open
Abstract
Antimicrobial resistance (AMR) is a growing global public health threat. Furthermore, wastewater is increasingly recognized as a significant environmental reservoir for AMR. Wastewater is a complex mixture of organic and inorganic compounds, including antibiotics and other antimicrobial agents, discharged from hospitals, pharmaceutical industries, and households. Therefore, wastewater treatment plants (WWTPs) are critical components of urban infrastructure that play a vital role in protecting public health and the environment. However, they can also be a source of AMR. WWTPs serve as a point of convergence for antibiotics and resistant bacteria from various sources, creating an environment that favours the selection and spread of AMR. The effluent from WWTPs can also contaminate surface freshwater and groundwater resources, which can subsequently spread resistant bacteria to the wider environment. In Africa, the prevalence of AMR in wastewater is of particular concern due to the inadequate sanitation and wastewater treatment facilities, coupled with the overuse and misuse of antibiotics in healthcare and agriculture. Therefore, the present review evaluated studies that reported on wastewater in Africa between 2012 and 2022 to identify knowledge gaps and propose future perspectives, informing the use of wastewater-based epidemiology as a proxy for determining the resistome circulating within the continent. The study found that although wastewater resistome studies have increased over time in Africa, this is not the case in every country, with most studies conducted in South Africa. Furthermore, the study identified, among others, methodology and reporting gaps, driven by a lack of skills. Finally, the review suggests solutions including standardisation of protocols in wastewater resistome works and an urgent need to build genomic skills within the continent to handle the big data generated from these studies.
Collapse
Affiliation(s)
- Akebe Luther King Abia
- One Health Research Group, Biochemistry & Microbiology Department, University of Venda, Private Bag X5050, Thohoyandou 0950, South Africa; (T.B.); (A.N.T.)
- Environmental Research Foundation, Westville 3630, South Africa
| | - Themba Baloyi
- One Health Research Group, Biochemistry & Microbiology Department, University of Venda, Private Bag X5050, Thohoyandou 0950, South Africa; (T.B.); (A.N.T.)
| | - Afsatou N. Traore
- One Health Research Group, Biochemistry & Microbiology Department, University of Venda, Private Bag X5050, Thohoyandou 0950, South Africa; (T.B.); (A.N.T.)
| | - Natasha Potgieter
- One Health Research Group, Biochemistry & Microbiology Department, University of Venda, Private Bag X5050, Thohoyandou 0950, South Africa; (T.B.); (A.N.T.)
| |
Collapse
|
6
|
Cuetero-Martínez Y, de Los Cobos-Vasconcelos D, Aguirre-Garrido JF, Lopez-Vidal Y, Noyola A. Next-generation Sequencing for Surveillance of Antimicrobial Resistance and Pathogenicity in Municipal Wastewater Treatment Plants. Curr Med Chem 2023; 30:5-29. [PMID: 35927898 DOI: 10.2174/0929867329666220802093415] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2022] [Revised: 04/18/2022] [Accepted: 04/25/2022] [Indexed: 01/28/2023]
Abstract
The World Health Organization (WHO) ranks antimicrobial resistance (AMR) and various pathogens among the top 10 health threats. It is estimated that by 2050, the number of human deaths due to AMR will reach 10 million annually. On the other hand, several infectious outbreaks such as SARS, H1N1 influenza, Ebola, Zika fever, and COVID-19 have severely affected human populations worldwide in the last 20 years. These recent global diseases have generated the need to monitor outbreaks of pathogens and AMR to establish effective public health strategies. This review presents AMR and pathogenicity associated with wastewater treatment plants (WWTP), focusing on Next Generation Sequencing (NGS) monitoring as a complementary system to clinical surveillance. In this regard, WWTP may be monitored at three main points. First, at the inlet (raw wastewater or influent) to identify a broad spectrum of AMR and pathogens contained in the excretions of residents served by sewer networks, with a specific spatio-temporal location. Second, at the effluent, to ensure the elimination of AMR and pathogens in the treated water, considering the rising demand for safe wastewater reuse. Third, in sewage sludge or biosolids, their beneficial use or final disposal can represent a significant risk to public health. This review is divided into two sections to address the importance and implications of AMR and pathogen surveillance in wastewater and WWTP, based on NGS. The first section presents the fundamentals of surveillance techniques applied in WWTP (metataxonomics, metagenomics, functional metagenomics, metaviromics, and metatranscriptomics). Their scope and limitations are analyzed to show how microbiological and qPCR techniques complement NGS surveillance, overcoming its limitations. The second section discusses the contribution of 36 NGS research papers on WWTP surveillance, highlighting the current situation and perspectives. In both sections, research challenges and opportunities are presented.
Collapse
Affiliation(s)
- Yovany Cuetero-Martínez
- Subdirección de Hidráulica y Ambiental, Instituto de Ingeniería, Universidad Nacional Autónoma de México, Mexico City, 04510 Cd de, México.,Doctorado en Ciencias Bioquímicas, Universidad Nacional Autónoma de México, Mexico City, 04510 Cd de, México
| | - Daniel de Los Cobos-Vasconcelos
- Subdirección de Hidráulica y Ambiental, Instituto de Ingeniería, Universidad Nacional Autónoma de México, Mexico City, 04510 Cd de, México
| | - José Felix Aguirre-Garrido
- Departamento de Ciencias Ambientales, Universidad Autónoma Metropolitana-Lerma, 52005 Lerma de Villada, Edo. México
| | - Yolanda Lopez-Vidal
- Departamento de Microbiología y Parasitología, Facultad de Medicina, Universidad Nacional Autónoma de México, Mexico City, 04510 Cd de, México
| | - Adalberto Noyola
- Subdirección de Hidráulica y Ambiental, Instituto de Ingeniería, Universidad Nacional Autónoma de México, Mexico City, 04510 Cd de, México
| |
Collapse
|
7
|
Safford H, Zuniga-Montanez RE, Kim M, Wu X, Wei L, Sharpnack J, Shapiro K, Bischel HN. Wastewater-Based Epidemiology for COVID-19: Handling qPCR Nondetects and Comparing Spatially Granular Wastewater and Clinical Data Trends. ACS ES T Water 2022; 2:2114-2124. [PMID: 37552742 PMCID: PMC9397567 DOI: 10.1021/acsestwater.2c00053] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Revised: 07/19/2022] [Accepted: 07/20/2022] [Indexed: 05/28/2023]
Abstract
Wastewater-based epidemiology (WBE) is a useful complement to clinical testing for managing COVID-19. While community-scale wastewater and clinical data frequently correlate, less is known about subcommunity relationships between the two data types. Moreover, nondetects in qPCR wastewater data are typically handled through methods known to bias results, overlooking perhaps better alternatives. We address these knowledge gaps using data collected from September 2020-June 2021 in Davis, California (USA). We hypothesize that coupling the expectation maximization (EM) algorithm with the Markov Chain Monte Carlo (MCMC) method could improve estimation of "missing" values in wastewater qPCR data. We test this hypothesis by applying EM-MCMC to city wastewater treatment plant data and comparing output to more conventional nondetect handling methods. Dissimilarities in results (i) underscore the importance of specifying nondetect handling method in reporting and (ii) suggest that using EM-MCMC may yield better agreement between community-scale clinical and wastewater data. We also present a novel framework for spatially aligning clinical data with wastewater data collected upstream of a treatment plant (i.e., distributed across a sewershed). Applying the framework to data from Davis reveals reasonable agreement between wastewater and clinical data at highly granular spatial scales-further underscoring the public-health value of WBE.
Collapse
Affiliation(s)
- Hannah Safford
- Department of Civil and Environmental Engineering,
University of California Davis, 3109 Ghausi Hall, 480 Bainer
Hall Drive, Davis, California 95616, United States
| | - Rogelio E. Zuniga-Montanez
- Department of Civil and Environmental Engineering,
University of California Davis, 3109 Ghausi Hall, 480 Bainer
Hall Drive, Davis, California 95616, United States
| | - Minji Kim
- School of Veterinary Medicine, University
of California Davis, Davis, California 95616, United
States
| | - Xiaoliu Wu
- Department of Statistics, University of
California Davis, Davis, California 95616, United
States
| | - Lifeng Wei
- Department of Statistics, University of
California Davis, Davis, California 95616, United
States
| | - James Sharpnack
- Department of Statistics, University of
California Davis, Davis, California 95616, United
States
| | - Karen Shapiro
- School of Veterinary Medicine, University
of California Davis, Davis, California 95616, United
States
| | - Heather N. Bischel
- Department of Civil and Environmental Engineering,
University of California Davis, 3109 Ghausi Hall, 480 Bainer
Hall Drive, Davis, California 95616, United States
| |
Collapse
|
8
|
Le Targa L, Wurtz N, Lacoste A, Penant G, Jardot P, Annessi A, Colson P, La Scola B, Aherfi S. SARS-CoV-2 Testing of Aircraft Wastewater Shows That Mandatory Tests and Vaccination Pass before Boarding Did Not Prevent Massive Importation of Omicron Variant into Europe. Viruses 2022; 14:v14071511. [PMID: 35891491 PMCID: PMC9319773 DOI: 10.3390/v14071511] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Revised: 07/06/2022] [Accepted: 07/07/2022] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND Most new SARS-CoV-2 epidemics in France occurred following the importation from abroad of emerging viral variants. Currently, the risk of new variants being imported is controlled based on a negative screening test (PCR or antigenic) and proof of up-to-date vaccine status, such as the International Air Transport Association travel pass. METHODS The wastewater from two planes arriving in Marseille (France) from Addis Ababa (Ethiopia) in December 2021 was tested by RT-PCR to detect SARS-CoV2 and screen for variants. These tests were carried out between landing and customs clearance and were then sequenced by MiSeq Illumina. Antigenic tests and sequencing by NovaSeq were carried out on respiratory samples collected from the 56 passengers on the second flight. RESULTS SARS-CoV-2 RNA suspected of being from the Omicron BA.1 variant was detected in the aircraft's wastewater. SARS-CoV2 RNA was detected in 11 [20%) passengers and the Omicron BA.1 variant was identified. CONCLUSION Our work shows the efficiency of aircraft wastewater testing to detect SARS-CoV-2 cases among travellers and to identify the viral genotype. It also highlights the low efficacy of the current control strategy for flights entering France from outside Europe, which combines a requirement to produce a vaccine pass and proof of a negative test before boarding.
Collapse
Affiliation(s)
- Lorlane Le Targa
- Microbes Evolution PHylogénie et Infections, Institut de Recherche pour le Développement (IRD), Assistance Publique-Hôpitaux de Marseille (AP-HM), Aix-Marseille Université, 13005 Marseille, France; (L.L.T.); (N.W.); (G.P.); (P.J.); (P.C.)
- Institut Hospitalo-Universitaire Méditerranée Infection, 19-21 Boulevard Jean Moulin, 13005 Marseille, France
- Biosellal, 27 Chemin des Peupliers, 69570 Lyon, France
| | - Nathalie Wurtz
- Microbes Evolution PHylogénie et Infections, Institut de Recherche pour le Développement (IRD), Assistance Publique-Hôpitaux de Marseille (AP-HM), Aix-Marseille Université, 13005 Marseille, France; (L.L.T.); (N.W.); (G.P.); (P.J.); (P.C.)
- Institut Hospitalo-Universitaire Méditerranée Infection, 19-21 Boulevard Jean Moulin, 13005 Marseille, France
| | - Alexandre Lacoste
- Bataillon des Marins Pompiers de la ville de Marseille, 13005 Marseille, France; (A.L.); (A.A.)
| | - Gwilherm Penant
- Microbes Evolution PHylogénie et Infections, Institut de Recherche pour le Développement (IRD), Assistance Publique-Hôpitaux de Marseille (AP-HM), Aix-Marseille Université, 13005 Marseille, France; (L.L.T.); (N.W.); (G.P.); (P.J.); (P.C.)
- Institut Hospitalo-Universitaire Méditerranée Infection, 19-21 Boulevard Jean Moulin, 13005 Marseille, France
| | - Priscilla Jardot
- Microbes Evolution PHylogénie et Infections, Institut de Recherche pour le Développement (IRD), Assistance Publique-Hôpitaux de Marseille (AP-HM), Aix-Marseille Université, 13005 Marseille, France; (L.L.T.); (N.W.); (G.P.); (P.J.); (P.C.)
- Institut Hospitalo-Universitaire Méditerranée Infection, 19-21 Boulevard Jean Moulin, 13005 Marseille, France
| | - Alexandre Annessi
- Bataillon des Marins Pompiers de la ville de Marseille, 13005 Marseille, France; (A.L.); (A.A.)
| | - Philippe Colson
- Microbes Evolution PHylogénie et Infections, Institut de Recherche pour le Développement (IRD), Assistance Publique-Hôpitaux de Marseille (AP-HM), Aix-Marseille Université, 13005 Marseille, France; (L.L.T.); (N.W.); (G.P.); (P.J.); (P.C.)
- Institut Hospitalo-Universitaire Méditerranée Infection, 19-21 Boulevard Jean Moulin, 13005 Marseille, France
| | - Bernard La Scola
- Microbes Evolution PHylogénie et Infections, Institut de Recherche pour le Développement (IRD), Assistance Publique-Hôpitaux de Marseille (AP-HM), Aix-Marseille Université, 13005 Marseille, France; (L.L.T.); (N.W.); (G.P.); (P.J.); (P.C.)
- Institut Hospitalo-Universitaire Méditerranée Infection, 19-21 Boulevard Jean Moulin, 13005 Marseille, France
- Correspondence: (B.L.S.); (S.A.); Tel.: +33-413-732-401 (B.L.S. & S.A.); Fax: +33-413-732-402 (B.L.S.); +33-413-732-052 (S.A.)
| | - Sarah Aherfi
- Microbes Evolution PHylogénie et Infections, Institut de Recherche pour le Développement (IRD), Assistance Publique-Hôpitaux de Marseille (AP-HM), Aix-Marseille Université, 13005 Marseille, France; (L.L.T.); (N.W.); (G.P.); (P.J.); (P.C.)
- Institut Hospitalo-Universitaire Méditerranée Infection, 19-21 Boulevard Jean Moulin, 13005 Marseille, France
- Correspondence: (B.L.S.); (S.A.); Tel.: +33-413-732-401 (B.L.S. & S.A.); Fax: +33-413-732-402 (B.L.S.); +33-413-732-052 (S.A.)
| |
Collapse
|
9
|
Huang Y, Qian X, Wang X, Wang T, Lounder SJ, Ravindran T, Demitrack Z, McCutcheon J, Asatekin A, Li B. Electrospraying Zwitterionic Copolymers as an Effective Biofouling Control for Accurate and Continuous Monitoring of Wastewater Dynamics in a Real-Time and Long-Term Manner. Environ Sci Technol 2022; 56:8176-8186. [PMID: 35576931 DOI: 10.1021/acs.est.2c01501] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Long-term continuous monitoring (LTCM) of water quality can provide high-fidelity datasets essential for executing swift control and enhancing system efficiency. One roadblock for LTCM using solid-state ion-selective electrode (S-ISE) sensors is biofouling on the sensor surface, which perturbs analyte mass transfer and deteriorates the sensor reading accuracy. This study advanced the anti-biofouling property of S-ISE sensors through precisely coating a self-assembled channel-type zwitterionic copolymer poly(trifluoroethyl methacrylate-random-sulfobetaine methacrylate) (PTFEMA-r-SBMA) on the sensor surface using electrospray. The PTFEMA-r-SBMA membrane exhibits exceptional permeability and selectivity to primary ions in water solutions. NH4+ S-ISE sensors with this anti-fouling zwitterionic layer were examined in real wastewater for 55 days consecutively, exhibiting sensitivity close to the theoretical value (59.18 mV/dec) and long-term stability (error <4 mg/L). Furthermore, a denoising data processing algorithm (DDPA) was developed to further improve the sensor accuracy, reducing the S-ISE sensor error to only 1.2 mg/L after 50 days of real wastewater analysis. Based on the dynamic energy cost function and carbon footprint models, LTCM is expected to save 44.9% NH4+ discharge, 12.8% energy consumption, and 26.7% greenhouse emission under normal operational conditions. This study unveils an innovative LTCM methodology by integrating advanced materials (anti-fouling layer coating) with sensor data processing (DDPA).
Collapse
Affiliation(s)
- Yuankai Huang
- Department of Civil and Environmental Engineering, University of Connecticut, Storrs, Connecticut 06269, United States
| | - Xin Qian
- Department of Chemical and Biomolecular Engineering, University of Connecticut, Storrs, Connecticut 06269, United States
| | - Xingyu Wang
- Department of Civil and Environmental Engineering, University of Connecticut, Storrs, Connecticut 06269, United States
| | - Tianbao Wang
- Department of Civil and Environmental Engineering, University of Connecticut, Storrs, Connecticut 06269, United States
| | - Samuel J Lounder
- Department of Chemical and Biological Engineering, Tufts University, Medford, Massachusetts 02155, United States
| | - Tulasi Ravindran
- Department of Chemical and Biomolecular Engineering, University of Connecticut, Storrs, Connecticut 06269, United States
| | - Zoe Demitrack
- Department of Civil and Environmental Engineering, University of Connecticut, Storrs, Connecticut 06269, United States
| | - Jeffrey McCutcheon
- Department of Chemical and Biomolecular Engineering, University of Connecticut, Storrs, Connecticut 06269, United States
| | - Ayse Asatekin
- Department of Chemical and Biological Engineering, Tufts University, Medford, Massachusetts 02155, United States
| | - Baikun Li
- Department of Civil and Environmental Engineering, University of Connecticut, Storrs, Connecticut 06269, United States
| |
Collapse
|
10
|
Brumfield KD, Leddy M, Usmani M, Cotruvo JA, Tien CT, Dorsey S, Graubics K, Fanelli B, Zhou I, Registe N, Dadlani M, Wimalarante M, Jinasena D, Abayagunawardena R, Withanachchi C, Huq A, Jutla A, Colwell RR. Microbiome Analysis for Wastewater Surveillance during COVID-19. mBio 2022;:e0059122. [PMID: 35726918 DOI: 10.1128/mbio.00591-22] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Wastewater surveillance (WS), when coupled with advanced molecular techniques, offers near real-time monitoring of community-wide transmission of SARS-CoV-2 and allows assessing and mitigating COVID-19 outbreaks, by evaluating the total microbial assemblage in a community. Composite wastewater samples (24 h) were collected weekly from a manhole between December 2020 and November 2021 in Maryland, USA. RT-qPCR results showed concentrations of SARS-CoV-2 RNA recovered from wastewater samples reflected incidence of COVID-19 cases. When a drastic increase in COVID-19 was detected in February 2021, samples were selected for microbiome analysis (DNA metagenomics, RNA metatranscriptomics, and targeted SARS-CoV-2 sequencing). Targeted SARS-CoV-2 sequencing allowed for detection of important genetic mutations, such as spike: K417N, D614G, P681H, T716I, S982A, and D1118H, commonly associated with increased cell entry and reinfection. Microbiome analysis (DNA and RNA) provided important insight with respect to human health-related factors, including detection of pathogens and their virulence/antibiotic resistance genes. Specific microbial species comprising the wastewater microbiome correlated with incidence of SARS-CoV-2 RNA, suggesting potential association with SARS-CoV-2 infection. Climatic conditions, namely, temperature, were related to incidence of COVID-19 and detection of SARS-CoV-2 in wastewater, having been monitored as part of an environmental risk score assessment carried out in this study. In summary, the wastewater microbiome provides useful public health information, and hence, a valuable tool to proactively detect and characterize pathogenic agents circulating in a community. In effect, metagenomics of wastewater can serve as an early warning system for communicable diseases, by providing a larger source of information for health departments and public officials. IMPORTANCE Traditionally, testing for COVID-19 is done by detecting SARS-CoV-2 in samples collected from nasal swabs and/or saliva. However, SARS-CoV-2 can also be detected in feces of infected individuals. Therefore, wastewater samples can be used to test all individuals of a community contributing to the sewage collection system, i.e., the infrastructure, such as gravity pipes, manholes, tanks, lift stations, control structures, and force mains, that collects used water from residential and commercial sources and conveys the flow to a wastewater treatment plant. Here, we profile community wastewater collected from a manhole, detect presence of SARS-CoV-2, identify genetic mutations of SARS-CoV-2, and perform COVID-19 risk score assessment of the study area. Using metagenomics analysis, we also detect other microorganisms (bacteria, fungi, protists, and viruses) present in the samples. Results show that by analyzing all microorganisms present in wastewater, pathogens circulating in a community can provide an early warning for contagious diseases.
Collapse
|
11
|
Delgado Vela J, McClary-Gutierrez JS, Al-Faliti M, Allan V, Arts P, Barbero R, Bell C, D’Souza N, Bakker K, Kaya D, Gonzalez R, Harrison K, Kannoly S, Keenum I, Li L, Pecson B, Philo SE, Schneider R, Schussman MK, Shrestha A, Stadler LB, Wigginton KR, Boehm A, Halden RU, Bibby K. Impact of Disaster Research on the Development of Early Career Researchers: Lessons Learned from the Wastewater Monitoring Pandemic Response Efforts. Environ Sci Technol 2022; 56:4724-4727. [PMID: 35389620 PMCID: PMC9016772 DOI: 10.1021/acs.est.2c01583] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Indexed: 06/14/2023]
Affiliation(s)
- Jeseth Delgado Vela
- Department
of Civil and Environmental Engineering, Howard University, Washington, D.C. 20059 United States
| | - Jill S. McClary-Gutierrez
- Department
of Civil and Environmental Engineering and Earth Sciences, University of Notre Dame, Notre Dame, Indiana 46556 United States
| | - Mitham Al-Faliti
- Department
of Civil and Environmental Engineering, Howard University, Washington, D.C. 20059 United States
| | - Vajra Allan
- PATH, Seattle, Washington 98121 United States
| | - Peter Arts
- Department
of Civil and Environmental Engineering, University of Michigan, Ann Arbor, Michigan 48109 United States
| | | | - Cristalyne Bell
- Department
of Family Medicine and Community Health, University of Wisconsin, Madison, Wisconsin 53715 United States
| | - Nishita D’Souza
- Department
of Fisheries and Wildlife, Michigan State
University, East Lansing, Michigan 48824 United States
| | - Kevin Bakker
- Department
of Epidemiology, University of Michigan, Ann Arbor, Michigan 48109 United States
| | - Devrim Kaya
- School
of Chemical, Biological, and Environmental Engineering, Oregon State University, Corvallis, Oregon 97331 United States
| | - Raul Gonzalez
- Hampton
Roads Sanitation District, Virginia Beach, Virginia 23455 United States
| | - Katherine Harrison
- Department
of Civil and Environmental Engineering, University of Michigan, Ann Arbor, Michigan 48109 United States
| | - Sherin Kannoly
- Queens
College, City University of New York, New York, New York 11367 United States
| | - Ishi Keenum
- National Institute of Standards and Technology, Gaithersburg, Maryland 20899 United States
| | - Lin Li
- Department
of Civil and Environmental Engineering, University of Nevada, Reno, Nevada 89557 United States
| | - Brian Pecson
- Trussell
Technologies, Pasadena, California 94612 United States
| | - Sarah E. Philo
- Department
of Environmental and Occupational Health Sciences, University of Washington, Seattle, Washington 98195 United States
| | | | - Melissa K. Schussman
- School
of Freshwater Sciences, University of Wisconsin-Milwaukee, Milwaukee Wisconsin 53204 United States
| | - Abhilasha Shrestha
- Division
of Environmental and Occupational Health Sciences, School of Public
Health, University of Illinois at Chicago, Chicago, Illinois 60612 United States
| | - Lauren B. Stadler
- Department
of Civil & Environmental Engineering, Rice University, Houston, Texas 77005 United States
| | - Krista R. Wigginton
- Department
of Civil and Environmental Engineering, University of Michigan, Ann Arbor, Michigan 48109 United States
| | - Alexandria Boehm
- Department
of Civil & Environmental Engineering, Stanford University, Stanford, California 94305 United States
| | - Rolf U. Halden
- Biodesign
Center for Environmental Health Engineering, Biodesign Institute, Arizona State University, Tempe, Arizona 85287 United States
- OneWaterOneHealth, Arizona State University
Foundation, Tempe, Arizona 85281 United
States
- AquaVitas, LLC, Scottsdale, Arizona 85260 United States
| | - Kyle Bibby
- Department
of Civil and Environmental Engineering and Earth Sciences, University of Notre Dame, Notre Dame, Indiana 46556 United States
| |
Collapse
|
12
|
Larsen DA, Green H, Collins MB, Kmush BL. Wastewater monitoring, surveillance and epidemiology: a review of terminology for a common understanding. FEMS Microbes 2021; 2:xtab011. [PMID: 34642662 PMCID: PMC8499728 DOI: 10.1093/femsmc/xtab011] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Accepted: 08/16/2021] [Indexed: 11/14/2022] Open
Abstract
Response to the COVID-19 (coronavirus disease 2019) pandemic saw an unprecedented uptake in bottom-up efforts to incorporate community wastewater testing to inform public health. While not a new strategy, various specialized scientific advancements were achieved to establish links between wastewater concentrations of SARS-CoV-2 (severe acute respiratory syndrome coronavirus 2) and public health outcomes. Maximizing public health benefit requires collaboration among a broad range of disciplinary experts, each bringing their own historical context to the central goal of protecting human health. One challenge has been a lack of shared terminology. Standardized terminology would provide common ground for this rapidly growing field. Based on the review herein, we recommend categorical usage of the term ‘wastewater-based epidemiology’ to describe the science of relating microbes, chemicals or other analytes in wastewater to public health. We further recommend the term ‘wastewater surveillance’ to describe continuous monitoring of health outcomes (either microbes or chemicals) via wastewater. We suggest that ‘wastewater tracking’ and ‘wastewater tracing’ be used in more narrow ways, specifically when trying to find the source of a health risk. Finally, we suggest that the phrase ‘wastewater monitoring’ be abandoned, except in rare circumstances when ensuring wastewater discharge is safe from a public health perspective.
Collapse
Affiliation(s)
- David A Larsen
- Department of Public Health, Syracuse University, Syracuse, NY 13244, USA
| | - Hyatt Green
- Department of Environmental Biology, SUNY College of Environmental Science and Forestry, Syracuse, NY 13210, USA
| | - Mary B Collins
- Department of Environmental Studies, SUNY College of Environmental Science and Forestry, Syracuse, NY 13210, USA
| | - Brittany L Kmush
- Department of Public Health, Syracuse University, Syracuse, NY 13244, USA
| |
Collapse
|
13
|
Mackuľak T, Gál M, Špalková V, Fehér M, Briestenská K, Mikušová M, Tomčíková K, Tamáš M, Butor Škulcová A. Wastewater-Based Epidemiology as an Early Warning System for the Spreading of SARS-CoV-2 and Its Mutations in the Population. Int J Environ Res Public Health 2021; 18:5629. [PMID: 34070320 PMCID: PMC8197469 DOI: 10.3390/ijerph18115629] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Revised: 05/20/2021] [Accepted: 05/21/2021] [Indexed: 12/18/2022]
Abstract
New methodologies based on the principle of "sewage epidemiology" have been successfully applied before in the detection of illegal drugs. The study describes the idea of early detection of a virus, e.g., SARS-CoV-2, in wastewater in order to focus on the area of virus occurrence and supplement the results obtained from clinical examination. By monitoring temporal variation in viral loads in wastewater in combination with other analysis, a virus outbreak can be detected and its spread can be suppressed early. The use of biosensors for virus detection also seems to be an interesting application. Biosensors are highly sensitive, selective, and portable and offer a way for fast analysis. This manuscript provides an overview of the current situation in the area of wastewater analysis, including genetic sequencing regarding viral detection and the technological solution of an early warning system for wastewater monitoring based on biosensors.
Collapse
Affiliation(s)
- Tomáš Mackuľak
- Department of Environmental Engineering, Institute of Chemical and Environmental Engineering, Faculty of Chemical and Food Technology, Slovak University of Technology, Radlinského 9, 812 37 Bratislava, Slovakia; (M.F.); (M.T.); (A.B.Š.)
| | - Miroslav Gál
- Department of Inorganic Technology, Faculty of Chemical and Food Technology, Slovak University of Technology, Radlinského 9, 812 37 Bratislava, Slovakia; (M.G.); (V.Š.)
| | - Viera Špalková
- Department of Inorganic Technology, Faculty of Chemical and Food Technology, Slovak University of Technology, Radlinského 9, 812 37 Bratislava, Slovakia; (M.G.); (V.Š.)
- Department of Zoology and Fisheries, Faculty of Agrobiology Food and Natural Resources, Czech University of Life Sciences Prague, Kamýcká 129, 165 21 Prague, Czech Republic
| | - Miroslav Fehér
- Department of Environmental Engineering, Institute of Chemical and Environmental Engineering, Faculty of Chemical and Food Technology, Slovak University of Technology, Radlinského 9, 812 37 Bratislava, Slovakia; (M.F.); (M.T.); (A.B.Š.)
- Department of Inorganic Technology, Faculty of Chemical and Food Technology, Slovak University of Technology, Radlinského 9, 812 37 Bratislava, Slovakia; (M.G.); (V.Š.)
| | - Katarína Briestenská
- Biomedical Research Center of the Slovak Academy of Sciences, Institute of Virology, Dúbravská cesta 9, 845 05 Bratislava, Slovakia; (K.B.); (M.M.); (K.T.)
| | - Miriam Mikušová
- Biomedical Research Center of the Slovak Academy of Sciences, Institute of Virology, Dúbravská cesta 9, 845 05 Bratislava, Slovakia; (K.B.); (M.M.); (K.T.)
| | - Karolína Tomčíková
- Biomedical Research Center of the Slovak Academy of Sciences, Institute of Virology, Dúbravská cesta 9, 845 05 Bratislava, Slovakia; (K.B.); (M.M.); (K.T.)
| | - Michal Tamáš
- Department of Environmental Engineering, Institute of Chemical and Environmental Engineering, Faculty of Chemical and Food Technology, Slovak University of Technology, Radlinského 9, 812 37 Bratislava, Slovakia; (M.F.); (M.T.); (A.B.Š.)
| | - Andrea Butor Škulcová
- Department of Environmental Engineering, Institute of Chemical and Environmental Engineering, Faculty of Chemical and Food Technology, Slovak University of Technology, Radlinského 9, 812 37 Bratislava, Slovakia; (M.F.); (M.T.); (A.B.Š.)
| |
Collapse
|
14
|
Okeyo AN, Nontongana N, Fadare TO, Okoh AI. Vibrio Species in Wastewater Final Effluents and Receiving Watershed in South Africa: Implications for Public Health. Int J Environ Res Public Health 2018; 15:ijerph15061266. [PMID: 29914048 PMCID: PMC6025350 DOI: 10.3390/ijerph15061266] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/07/2018] [Revised: 05/21/2018] [Accepted: 06/07/2018] [Indexed: 11/17/2022]
Abstract
Wastewater treatment facilities in South Africa are obliged to make provision for wastewater effluent quality management, with the aim of securing the integrity of the surrounding watersheds and environments. The Department of Water Affairs has documented regulatory parameters that have, over the years, served as a guideline for quality monitoring/management purposes. However, these guidelines have not been regularly updated and this may have contributed to some of the water quality anomalies. Studies have shown that promoting the monitoring of the current routinely monitored parameters (both microbial and physicochemical) may not be sufficient. Organisms causing illnesses or even outbreaks, such as Vibrio pathogens with their characteristic environmental resilience, are not included in the guidelines. In South Africa, studies that have been conducted on the occurrence of Vibrio pathogens in domestic and wastewater effluent have made it apparent that these pathogens should also be monitored. The importance of effective wastewater management as one of the key aspects towards protecting surrounding environments and receiving watersheds, as well as protecting public health, is highlighted in this review. Emphasis on the significance of the Vibrio pathogen in wastewater is a particular focus.
Collapse
Affiliation(s)
- Allisen N Okeyo
- SAMRC Microbial Water Quality Monitoring Centre, University of Fort Hare, Alice 5700, South Africa.
- Applied and Environmental Microbiology Research Group (AEMREG), Department of Biochemistry and Microbiology, University of Fort Hare, Alice 5700, South Africa.
- Department of Biochemistry and Microbiology, University of Fort Hare, P/Bag X1314, Eastern Cape, Alice 5700, South Africa.
| | - Nolonwabo Nontongana
- SAMRC Microbial Water Quality Monitoring Centre, University of Fort Hare, Alice 5700, South Africa.
- Applied and Environmental Microbiology Research Group (AEMREG), Department of Biochemistry and Microbiology, University of Fort Hare, Alice 5700, South Africa.
- Department of Biochemistry and Microbiology, University of Fort Hare, P/Bag X1314, Eastern Cape, Alice 5700, South Africa.
| | - Taiwo O Fadare
- SAMRC Microbial Water Quality Monitoring Centre, University of Fort Hare, Alice 5700, South Africa.
- Applied and Environmental Microbiology Research Group (AEMREG), Department of Biochemistry and Microbiology, University of Fort Hare, Alice 5700, South Africa.
- Department of Biochemistry and Microbiology, University of Fort Hare, P/Bag X1314, Eastern Cape, Alice 5700, South Africa.
| | - Anthony I Okoh
- SAMRC Microbial Water Quality Monitoring Centre, University of Fort Hare, Alice 5700, South Africa.
- Applied and Environmental Microbiology Research Group (AEMREG), Department of Biochemistry and Microbiology, University of Fort Hare, Alice 5700, South Africa.
- Department of Biochemistry and Microbiology, University of Fort Hare, P/Bag X1314, Eastern Cape, Alice 5700, South Africa.
| |
Collapse
|