Journal of water and health最新文献_第9页

Comparison of four commercial immunomagnetic separation kits for the detection of Cryptosporidium. 四种商业免疫磁分离试剂盒检测隐孢子虫的比较。

IF 2.3 4区环境科学与生态学

Journal of water and health Pub Date : 2023-10-01 DOI: 10.2166/wh.2023.217

Jeanne Claudeen Arona, Timothy J Hall, Flyn Mckinnirey, Fei Deng

{"title":"Comparison of four commercial immunomagnetic separation kits for the detection of Cryptosporidium.","authors":"Jeanne Claudeen Arona, Timothy J Hall, Flyn Mckinnirey, Fei Deng","doi":"10.2166/wh.2023.217","DOIUrl":"https://doi.org/10.2166/wh.2023.217","url":null,"abstract":"Cryptosporidium spp. are protozoan parasites of significant health importance found in environmental waters globally. Four commercially available Cryptosporidium-specific immunomagnetic separation (IMS) kits used in various water sample matrices were analysed and compared. Beads were characterised by flow cytometry and tested for the recovery efficiencies for oocysts spiked into different matrices: river water sediment, clay sample, and filter backwash sample. Results showed that Dynabeads™ Cryptosporidium and Waterborne Crypto-Grab™ kits contained immunoglobulin IgM antibody-coated beads. In contrast, the BioPoint CryptoBead and the TCS Isolate kits contained immunoglobulin IgG antibody-coated beads. BioPoint CryptoBead was significantly coated with more antibodies and were able to capture oocysts more rapidly compared to the other beads. Recovery efficiencies of Dynabeads™, TCS Isolate® beads, and BioPoint CryptoBead ranged from 55 to 93% when tested against different sample matrices, with BioPoint CryptoBead resulting in the highest at 93% in reagent-grade water and Dynabeads™ at 55%, the lowest against clay samples. The Waterborne beads did not perform well on any samples, with recovery efficiencies ranging from 0 to 8%. Fluorescence microscopy analyses showed that both the IMS method and the sample matrix processed affect the quality of the membranes, with the cleanest samples for microscopy examination observed from BioPoint CryptoBead.","PeriodicalId":17436,"journal":{"name":"Journal of water and health","volume":"21 10","pages":"1580-1590"},"PeriodicalIF":2.3,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/wh_2023_217/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71412704","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The impact of chlorine, ultraviolet-C, and microwave treatment on the survivability of Blastocystis sp. cysts. 氯、紫外线-C和微波处理对芽囊孢子虫孢子生存能力的影响。

IF 2.3 4区环境科学与生态学

Journal of water and health Pub Date : 2023-09-01 DOI: 10.2166/wh.2023.179

Amira B Mokhtar, Panagiotis Karanis, Chad Schou, Shahira A Ahmed

{"title":"The impact of chlorine, ultraviolet-C, and microwave treatment on the survivability of Blastocystis sp. cysts.","authors":"Amira B Mokhtar, Panagiotis Karanis, Chad Schou, Shahira A Ahmed","doi":"10.2166/wh.2023.179","DOIUrl":"https://doi.org/10.2166/wh.2023.179","url":null,"abstract":"Blastocystis sp. is a common widely distributed gut protozoan, with water transmission identified as one of its transmission routes. This study aimed to investigate the effect of chlorine, ultraviolet (UV)-C, and microwave (MW) treatments on the in vitro viability of cysts of Blastocystis sp. Purified Blastocystis sp. cysts were molecularly subtyped. Viable cysts were subjected to different free chlorine concentrations (1, 2, and 4 ppm), different doses of UV-C (5.13, 10.26, 20.52, and 40.47 mJ/cm2), and MW irradiation times (10, 15, 30, and 45 s). Viability reduction percentage, log10 inactivation, and micrometre-based optical microscopy examined cyst number and appearance after each disinfection trial. The three disinfectants' efficacy and application conditions were assessed. The analysed isolates of Blastocystis cysts were subtype 3, possessed varying sizes and shapes, but two identical genomes. The cysts of Blastocystis sp. were resistant to chlorine at all doses and exposure durations tested. UV-C at a dose of 40 mJ/cm2 and MW treatment for 15 s were able to completely disinfect the cysts. The MW was the most effective disinfectant against Blastocystis cysts based on all evaluated factors. MW irradiation is the most efficient water treatment method for eradicating Blastocystis cysts in an easy and safe manner.","PeriodicalId":17436,"journal":{"name":"Journal of water and health","volume":"21 9","pages":"1325-1341"},"PeriodicalIF":2.3,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/wh_2023_179/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41129098","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Inactivation of coxsackievirus B5 by free chlorine under conditions relevant to drinking water treatment. 在与饮用水处理相关的条件下用游离氯灭活柯萨奇病毒B5。

IF 2.3 4区环境科学与生态学

Journal of water and health Pub Date : 2023-09-01 DOI: 10.2166/wh.2023.178

Vu Duc Canh, Shotaro Torii, Tippawan Singhopon, Hiroyuki Katayama

引用次数: 0

Performance evaluation of biocoagulant for the effective removal of turbidity and microbial pathogens from drinking water. 生物絮凝剂有效去除饮用水中浊度和微生物病原体的性能评价。

IF 2.3 4区环境科学与生态学

Journal of water and health Pub Date : 2023-09-01 DOI: 10.2166/wh.2023.059

Zenebe Nigussie, Nigus Gabbiye Habtu

{"title":"Performance evaluation of biocoagulant for the effective removal of turbidity and microbial pathogens from drinking water.","authors":"Zenebe Nigussie, Nigus Gabbiye Habtu","doi":"10.2166/wh.2023.059","DOIUrl":"https://doi.org/10.2166/wh.2023.059","url":null,"abstract":"In this study, Moringa seeds, aloe vera leaves, and cactus leaves were used as biocoagulants for the treatment of drinking water. The effects of coagulant type, coagulant dosage, and pH were studied on the quality of the treated water. Response surface methodology was used to predict and optimize the parameters. The standard Six Jar test was used to measure the performance of coagulants. Three mixing modes were used in the jar test: quick mixing at 1 min at 120 rpm, slow mixing for 19 min at 40 rpm, and 15 min settling. The characterization results showed that extracts of Moringa seeds, aloe vera leaves, and cactus leaves contain 43.95 ± 0.49, 13.9 ± 0.42, and 10.94% ± 0.37 protein, respectively. It was revealed that coagulant type, coagulant dosage, and the interaction between (coagulant type (MS-SC and AV-SC) and pH) were significant (p < 0.05) for turbidity removal. Jar test results showed a removal efficiency of turbidity 98.83%, and 98.74% and 69.83% using MS-SC, and AV-SC and Ca-SC bio, respectively. These results imply that the three coagulants can be considered as effective, low-cost, and eco-friendly resources for the treatment of drinking water in rural communities of Ethiopia where access to clean water is scarce.","PeriodicalId":17436,"journal":{"name":"Journal of water and health","volume":"21 9","pages":"1158-1176"},"PeriodicalIF":2.3,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/wh_2023_059/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41132979","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

ECHIDNA (Emerging CHemIcals Database for National Awareness): a framework to prioritise contaminants of emerging concern in water. 国家意识新兴化学品数据库：一个优先考虑水中新出现的污染物的框架。

IF 2.3 4区环境科学与生态学

Journal of water and health Pub Date : 2023-09-01 DOI: 10.2166/wh.2023.190

Peta A Neale, Steven D Melvin, Marty Hancock, Frederic D L Leusch

{"title":"ECHIDNA (Emerging CHemIcals Database for National Awareness): a framework to prioritise contaminants of emerging concern in water.","authors":"Peta A Neale, Steven D Melvin, Marty Hancock, Frederic D L Leusch","doi":"10.2166/wh.2023.190","DOIUrl":"https://doi.org/10.2166/wh.2023.190","url":null,"abstract":"The widespread presence of contaminants of emerging concern (CEC) in surface waters, treated wastewater and drinking water is an ongoing issue for the water industry. The absence of regulatory guidance and limited occurrence, toxicity and removal data are defining criteria of CEC and make it difficult to prioritise which CEC pose the greatest risk. The online Emerging CHemIcals Database for National Awareness (ECHIDNA) aims to classify and prioritise CEC based on their potential risk, with the information presented in an easily accessible and intuitive manner. A candidate list of almost 1,800 potential CEC, including pesticides, pharmaceuticals and industrial compounds, was compiled using both Australian and international resources. These were ranked based on in silico assessment of their persistent, bioaccumulative and toxic (PBT) properties, as well as potential chronic toxicity hazard, yielding 247 CEC for further prioritisation. Risk Quotients (RQ) identified between 5 and 87 CEC posing a risk to human and ecosystem health, respectively, across drinking water, surface water, treated wastewater and raw wastewater. While the ability of the water industry to effectively prioritise CEC is limited by candidate identification and data availability, ECHIDNA can provide valuable information for better decision-making surrounding CEC management.","PeriodicalId":17436,"journal":{"name":"Journal of water and health","volume":"21 9","pages":"1357-1368"},"PeriodicalIF":2.3,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/wh_2023_190/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41134919","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Effect of Kangen and reverse osmosis water on dental plaque, salivary pH and salivary Streptococcus mutans counts: a randomized-controlled trial (A preliminary study). 康根和反渗透水对牙菌斑、唾液pH值和唾液变形链球菌计数的影响：一项随机对照试验（初步研究）。

IF 2.3 4区环境科学与生态学

Journal of water and health Pub Date : 2023-09-01 DOI: 10.2166/wh.2023.143

Ananta Kusumakar, Zainab Akram, Mahesh Ravindra Khairnar, Sachin Kumar Jadhav, Harloveen Sabharwal, Savitha Priyadarsini S, Naveen Kumar Pg

{"title":"Effect of Kangen and reverse osmosis water on dental plaque, salivary pH and salivary Streptococcus mutans counts: a randomized-controlled trial (A preliminary study).","authors":"Ananta Kusumakar, Zainab Akram, Mahesh Ravindra Khairnar, Sachin Kumar Jadhav, Harloveen Sabharwal, Savitha Priyadarsini S, Naveen Kumar Pg","doi":"10.2166/wh.2023.143","DOIUrl":"https://doi.org/10.2166/wh.2023.143","url":null,"abstract":"Purpose: The present randomized-controlled trial was conducted to assess the effect of Kangen water and reverse osmosis (RO) water on dental plaque, salivary pH and salivary Streptococcus mutans count.Materials and methods: This randomized control trial was conducted for 14 days on 24 randomly selected participants from the pool of undergraduate dental students. Participants were randomly divided into two groups of 12 each: the Kangen water (pH 9) group and the RO water group. Participants in each group were asked to drink allocated water for 7 days. Dental plaque, salivary pH and microbial colony-forming units (CFUs) were assessed after 7 and 14 days.Results: Intragroup comparison showed that all three outcomes showed a significant improvement in the Kangen water group after 14 days, whereas no difference was seen in the RO water group. Intergroup comparison showed a significant difference in plaque score and CFU among the two groups after 7 and 14 days, whereas pH between the two groups did not show a significant difference.Conclusions: Regular drinking of alkaline Kangen water with pH 9 was found to be effective in reducing plaque and salivary Streptococcus mutans count when compared to RO water.","PeriodicalId":17436,"journal":{"name":"Journal of water and health","volume":"21 9","pages":"1257-1263"},"PeriodicalIF":2.3,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/wh_2023_143/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41148429","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Health risk assessment of nitrate pollution of drinking groundwater in rural areas of Suihua, China. 绥化市农村饮用水硝酸盐污染的健康风险评价。

IF 2.3 4区环境科学与生态学

Journal of water and health Pub Date : 2023-09-01 DOI: 10.2166/wh.2023.069

Qifa Sun, Ke Yang, Tao Liu, Junbo Yu, Chunhai Li, Dexian Yang, Chen Hu, Lin Guo

{"title":"Health risk assessment of nitrate pollution of drinking groundwater in rural areas of Suihua, China.","authors":"Qifa Sun, Ke Yang, Tao Liu, Junbo Yu, Chunhai Li, Dexian Yang, Chen Hu, Lin Guo","doi":"10.2166/wh.2023.069","DOIUrl":"https://doi.org/10.2166/wh.2023.069","url":null,"abstract":"In order to investigate the health risks of NO3- in rural drinking groundwater in Suihua, China and provide a basis for healthy drinking water, 40 sets of groundwater samples were collected in the Suihua area, and the average concentration of nitrate in the study area was 71.66 mg/L, statistical analysis software (SPSS19), Hydrogeochemical Analysis Software (AqQA) and groundwater pollution analysis software were used. Through water sample collection, chemical analysis and construction of human health risk model (HHRA), a qualitative and quantitative assessment of NO3- health risk was carried out for people of different ages and sexes, and it was concluded that there was NO3- pollution health risk in rural drinking groundwater in Suihua. Health risk level: infants > children > adult females > adult males. The evaluation provides a scientific basis for the prevention and control of NO3- pollution in groundwater and new ideas for preventing human health risks.","PeriodicalId":17436,"journal":{"name":"Journal of water and health","volume":"21 9","pages":"1193-1208"},"PeriodicalIF":2.3,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/wh_2023_069/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41129756","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Antibiotic resistance and virulence potentials of E. faecalis and E. faecium in hospital wastewater: a case study in Ardabil, Iran. 医院废水中粪大肠杆菌和粪大肠杆菌的抗生素耐药性和毒力潜力：伊朗Ardabil的一项案例研究。

IF 2.3 4区环境科学与生态学

Journal of water and health Pub Date : 2023-09-01 DOI: 10.2166/wh.2023.147

Elham Jannati, Farzad Khademi, Meysam Manouchehrifar, Dadras Maleki, Nour Amirmozaffari, Vajihe Sadat Nikbin, Mohsen Arzanlou

{"title":"Antibiotic resistance and virulence potentials of E. faecalis and E. faecium in hospital wastewater: a case study in Ardabil, Iran.","authors":"Elham Jannati, Farzad Khademi, Meysam Manouchehrifar, Dadras Maleki, Nour Amirmozaffari, Vajihe Sadat Nikbin, Mohsen Arzanlou","doi":"10.2166/wh.2023.147","DOIUrl":"https://doi.org/10.2166/wh.2023.147","url":null,"abstract":"Hospital wastewater can contaminate the environment with antibiotic-resistant and virulent bacteria. We analyzed wastewater samples from four hospitals in Ardabil province, Iran for Enterococcus faecium and Enterococcus faecalis using culture and molecular methods. We also performed antimicrobial susceptibility testing and polymerase chain reaction testing for resistance and virulence genes. Out of 141 enterococci isolates, 68.8% were E. faecium and 23.4% were E. faecalis. Ciprofloxacin and rifampicin showed the highest level of resistance against E. faecalis and E. faecium isolates at 65%. High-level gentamicin resistance (HLGR), high-level streptomycin resistance (HLSR), ampicillin, and vancomycin resistance were observed in 25, 5, 10, and 5.15% of E. faecium, and 15, 6, 15, and 3.03% of E. faecalis isolates, respectively. The ant(6')-Ia and ant(3')-Ia genes that were responsible for streptomycin resistance were observed in HLSR isolates and aph(3')-IIIa and aac(6') Ie-aph(2″)-Ia genes accounting for gentamicin resistance were detected in HLGR isolates. vanA was the predominant gene detected in vancomycin-resistant isolates. The majority of isolates were positive for gelE, asa1, esp, cylA, and hyl virulence genes. We found that drug-resistant and virulent E. faecalis and E. faecium isolates were prevalent in hospital wastewater. Proper treatment strategies are required to prevent their dissemination into the environment.","PeriodicalId":17436,"journal":{"name":"Journal of water and health","volume":"21 9","pages":"1277-1290"},"PeriodicalIF":2.3,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/wh_2023_147/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41150034","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Molecular characterisation and potential pathogenicity analysis of Acanthamoeba isolated from recreational lakes in Peninsular Malaysia. 马来西亚半岛休闲湖泊棘阿米巴的分子特征及潜在致病性分析。

IF 2.3 4区环境科学与生态学

Journal of water and health Pub Date : 2023-09-01 DOI: 10.2166/wh.2023.186

Rohaya Abdul Halim, Rosnani Hanim Mohd Hussain, Shafiq Aazmi, Hasseri Halim, Naveed Ahmed Khan, Ruqaiyyah Siddiqui, Tengku Shahrul Anuar

{"title":"Molecular characterisation and potential pathogenicity analysis of Acanthamoeba isolated from recreational lakes in Peninsular Malaysia.","authors":"Rohaya Abdul Halim, Rosnani Hanim Mohd Hussain, Shafiq Aazmi, Hasseri Halim, Naveed Ahmed Khan, Ruqaiyyah Siddiqui, Tengku Shahrul Anuar","doi":"10.2166/wh.2023.186","DOIUrl":"10.2166/wh.2023.186","url":null,"abstract":"The present study aims to identify the Acanthamoeba genotypes and their pathogenic potential in three recreational lakes in Malaysia. Thirty water samples were collected by purposive sampling between June and July 2022. Physical parameters of water quality were measured in situ while chemical and microbiological analyses were performed in the laboratory. The samples were vacuum filtered through nitrate filter, cultured onto non-nutrient agar and observed microscopically for amoebic growth. DNAs from positive samples were extracted and made to react with polymerase chain reaction using specific primers. Physiological tolerance tests were performed for all Acanthamoeba-positive samples. The presence of Acanthamoeba was found in 26 of 30 water samples by PCR. The highest rate in lake waters contaminated with amoeba was in Biru Lake (100%), followed by Titiwangsa Lake (80%) and Shah Alam Lake (80%). ORP, water temperature, pH and DO were found to be significantly correlated with the presence of Acanthamoeba. The most common genotype was T4. Temperature- and osmo-tolerance tests showed that 8 (30.8%) of the genotypes T4, T9 and T11 were highly pathogenic. The presence of genotype T4 in habitats related to human activities supports the relevance of this amoeba as a potential public health concern.","PeriodicalId":17436,"journal":{"name":"Journal of water and health","volume":"21 9","pages":"1342-1356"},"PeriodicalIF":2.3,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/wh_2023_186/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41141883","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Correlation between wastewater and COVID-19 case incidence rates in major California sewersheds across three variant periods. 三个不同时期加州主要缝纫厂废水与新冠肺炎病例发病率的相关性。

IF 2.3 4区环境科学与生态学

Journal of water and health Pub Date : 2023-09-01 DOI: 10.2166/wh.2023.173

Angela Rabe, Sindhu Ravuri, Elisabeth Burnor, Joshua A Steele, Rose S Kantor, Samuel Choi, Stanislav Forman, Ryan Batjiaka, Seema Jain, Tomás M León, Duc J Vugia, Alexander T Yu

{"title":"Correlation between wastewater and COVID-19 case incidence rates in major California sewersheds across three variant periods.","authors":"Angela Rabe, Sindhu Ravuri, Elisabeth Burnor, Joshua A Steele, Rose S Kantor, Samuel Choi, Stanislav Forman, Ryan Batjiaka, Seema Jain, Tomás M León, Duc J Vugia, Alexander T Yu","doi":"10.2166/wh.2023.173","DOIUrl":"10.2166/wh.2023.173","url":null,"abstract":"Monitoring for COVID-19 through wastewater has been used for adjunctive public health surveillance, with SARS-CoV-2 viral concentrations in wastewater correlating with incident cases in the same sewershed. However, the generalizability of these findings across sewersheds, laboratory methods, and time periods with changing variants and underlying population immunity has not been well described. The California Department of Public Health partnered with six wastewater treatment plants starting in January 2021 to monitor wastewater for SARS-CoV-2, with analyses performed at four laboratories. Using reported PCR-confirmed COVID-19 cases within each sewershed, the relationship between case incidence rates and wastewater concentrations collected over 14 months was evaluated using Spearman's correlation and linear regression. Strong correlations were observed when wastewater concentrations and incidence rates were averaged (10- and 7-day moving window for wastewater and cases, respectively, ρ = 0.73-0.98 for N1 gene target). Correlations remained strong across three time periods with distinct circulating variants and vaccination rates (winter 2020-2021/Alpha, summer 2021/Delta, and winter 2021-2022/Omicron). Linear regression revealed that slopes of associations varied by the dominant variant of concern, sewershed, and laboratory (β = 0.45-1.94). These findings support wastewater surveillance as an adjunctive public health tool to monitor SARS-CoV-2 community trends.","PeriodicalId":17436,"journal":{"name":"Journal of water and health","volume":"21 9","pages":"1303-1317"},"PeriodicalIF":2.3,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/wh_2023_173/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41132238","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0