Journal of water and health最新文献

Occurrence, virulence, and AMR profile of Vibrio parahaemolyticus isolated from shellfish growing areas located along the south-west coast of India. 从印度西南海岸贝类生长区分离出的副溶血性弧菌的发生、毒性和 AMR 特征。

IF 2.5 4区环境科学与生态学

Journal of water and health Pub Date : 2024-09-01 Epub Date: 2024-08-06 DOI: 10.2166/wh.2024.338

Ally C Antony, Reshma Silvester, P A Aneesa, Vipindas P V, Deborah Gnana Selvam A, Vivas Salim, Mini K Paul, Mohamed Hatha Abdulla

{"title":"Occurrence, virulence, and AMR profile of Vibrio parahaemolyticus isolated from shellfish growing areas located along the south-west coast of India.","authors":"Ally C Antony, Reshma Silvester, P A Aneesa, Vipindas P V, Deborah Gnana Selvam A, Vivas Salim, Mini K Paul, Mohamed Hatha Abdulla","doi":"10.2166/wh.2024.338","DOIUrl":"https://doi.org/10.2166/wh.2024.338","url":null,"abstract":"Vibrio parahaemolyticus is a leading cause of human gastroenteritis associated with seafood consumption. The present study aimed to investigate the occurrence and risk assessment of V. parahaemolyticus isolated from live Indian black clams, sediment, and water samples collected from shellfish harvesting areas located along the south-west coast of India. Out of the total 72 samples collected, 55.6% revealed the presence of V. parahaemolyticus; the highest occurrence was observed in shellfish samples. The presence of tdh and trh virulence genes was screened by multiplex PCR. Virulence genes could be detected in 25.8% of the strains; 19.35% of them were trh positive and 3.2% were tdh positive, while 3.2% of strains exhibited the coexistence of both virulence genes. Antimicrobial resistance (AMR) determined by the disk diffusion method revealed that 87% of the strains were multiple drug resistant and exhibited 21 diverse resistance patterns. The overall multiple antibiotic resistance (MAR) index values ranged from 0 to 0.8. To the best of our knowledge, this is the first report to document the presence of pathogenic and multidrug-resistant V. parahaemolyticus in shellfish harvesting areas of the Indian sub-continent. The study reveals possible health hazards associated with consuming shellfish harvested from the study area.","PeriodicalId":17436,"journal":{"name":"Journal of water and health","volume":"22 9","pages":"1594-1605"},"PeriodicalIF":2.5,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142349156","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Wastewater surveillance for antibiotic resistance genes during the late 2020 SARS-CoV-2 peak in two different populations. 2020 年底 SARS-CoV-2 高峰期在两个不同人群中对抗生素耐药基因的废水监测。

IF 2.5 4区环境科学与生态学

Journal of water and health Pub Date : 2024-09-01 Epub Date: 2024-08-07 DOI: 10.2166/wh.2024.161

Sarah E Philo, Sílvia Monteiro, Erica R Fuhrmeister, Ricardo Santos, John Scott Meschke

{"title":"Wastewater surveillance for antibiotic resistance genes during the late 2020 SARS-CoV-2 peak in two different populations.","authors":"Sarah E Philo, Sílvia Monteiro, Erica R Fuhrmeister, Ricardo Santos, John Scott Meschke","doi":"10.2166/wh.2024.161","DOIUrl":"https://doi.org/10.2166/wh.2024.161","url":null,"abstract":"The United States Centers for Disease Control and Prevention reported a rise in resistant infections after the coronavirus disease 2019 (COVID-19) pandemic started. How and if the pandemic contributed to antibiotic resistance in the larger population is not well understood. Wastewater treatment plants are good locations for environmental surveillance because they can sample entire populations. This study aimed to validate methods used for COVID-19 wastewater surveillance for bacterial targets and to understand how rising COVID-19 cases from October 2020 to February 2021 in Portugal (PT) and King County, Washington contributed to antibiotic resistance genes in wastewater. Primary influent wastewater was collected from two treatment plants in King County and five treatment plants in PT, and hospital effluent was collected from three hospitals in PT. Genomic extracts were tested with the quantitative polymerase chain reaction for antibiotic resistance genes conferring resistance against antibiotics under threat. Random-effect models were fit for log-transformed gene abundances to assess temporal trends. All samples collected tested positive for multiple resistance genes. During the sampling period, mecA statistically significantly increased in King County and PT. No statistical evidence exists of correlation between samples collected in the same Portuguese metro area.","PeriodicalId":17436,"journal":{"name":"Journal of water and health","volume":"22 9","pages":"1683-1694"},"PeriodicalIF":2.5,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142349157","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Management of trihalomethanes in water by ZnO@kaolinite composite: integrated experimental and modeling studies. ZnO@kaolinite 复合材料对水中三卤甲烷的管理：综合实验与模型研究。

IF 2.5 4区环境科学与生态学

Journal of water and health Pub Date : 2024-09-01 Epub Date: 2024-09-10 DOI: 10.2166/wh.2024.250

Enas Ezzat, El-Sayed I Mishaqa, O A Mohamed, Nabila Shehata

{"title":"Management of trihalomethanes in water by ZnO@kaolinite composite: integrated experimental and modeling studies.","authors":"Enas Ezzat, El-Sayed I Mishaqa, O A Mohamed, Nabila Shehata","doi":"10.2166/wh.2024.250","DOIUrl":"https://doi.org/10.2166/wh.2024.250","url":null,"abstract":"The adsorption of trihalomethanes (THMs) from drinking water was investigated in the current study through comparison studies of kaolinite and ZnO@kaolinite nanocomposites. The clay structural network's successful immobilization on the zincite hexagonal structure of ZnO nanoparticles' lattice layers was verified by the SEM/EDX analysis. Under the optimum conditions, the maximum removal of THMs was achieved by kaolinite and ZnO@kaolinite nanocomposites after 60 min. The adsorption performance of the ZnO@kaolinite nanocomposites was greater than that of kaolinite because the former had a larger surface area than the latter. The Freundlich isotherm model best matched the adsorption experimental data, which also reveals the existence of multilayer adsorption on a diverse surface with the greatest correlation (R2 = 0.956 and 0.954, respectively) for both nanoadsorbents using the pseudo-first-order (PFO), pseudo-second-order (PSO), mixed 1, 2-order (MFSO), and intraparticle diffusion (IPD) models. The mechanism by which THMs in drinking water adsorb onto nanoadsorbents was examined. This revealed that both intraparticle and film diffusion were involved in the adsorption process. Kaolinite and ZnO@kaolinite nanocomposites can be used in water treatment to remove THMs due to their great recyclable and reusable properties, even after six cycles.","PeriodicalId":17436,"journal":{"name":"Journal of water and health","volume":"22 9","pages":"1704-1724"},"PeriodicalIF":2.5,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142349154","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Application of miniaturized most probable number method for bacterial detection in water samples: detection of multi-drug-resistant Ralstonia insidiosa in drinking water. 应用微型化最可能数法检测水样中的细菌：检测饮用水中具有多重耐药性的 Ralstonia insidiosa。

IF 2.5 4区环境科学与生态学

Journal of water and health Pub Date : 2024-09-01 Epub Date: 2024-08-16 DOI: 10.2166/wh.2024.086

Noor Andryan Ilsan, Siti Nurfajriah, Maulin Inggraini, Ni Putu Ratna Ayu Krishanti, Melda Yunita, Reza Anindita, Tzu-Wen Huang

{"title":"Application of miniaturized most probable number method for bacterial detection in water samples: detection of multi-drug-resistant Ralstonia insidiosa in drinking water.","authors":"Noor Andryan Ilsan, Siti Nurfajriah, Maulin Inggraini, Ni Putu Ratna Ayu Krishanti, Melda Yunita, Reza Anindita, Tzu-Wen Huang","doi":"10.2166/wh.2024.086","DOIUrl":"https://doi.org/10.2166/wh.2024.086","url":null,"abstract":"The detection of bacterial contamination in drinking water is essential for monitoring the spread of foodborne diseases. We developed a simple, portable, and low-cost method of mini most probable number (mini MPN) to semi-enumerate bacterial suspension in water as a drinking water analogue. In this study, there is no significant difference between mini MPN and the standard method, technique plate count (TPC), at 10 and 100 CFU/ml Klebsiella pneumoniae suspension with a P-value of 0.28. For the ease-of-use aspect of this method, we tested several variables to prove it can be mass-applied in society. The usage of a sterile-plastic pipette, sample inoculation conducted in a biosafety cabinet (BSC), the usage of a 3-month storage medium, and incubation temperature conducted at room temperature compared to aseptic standard laboratory technique showed P-value > 0.05. In a trial for this method, we used commercialized drinking water for bacterial enumeration and characterization. We found multi-drug resistant (MDR) Ralstonia insidiosa which was resistant to at least four antimicrobial classes, including aminoglycosides, penicillins, cephalosporin, and carbapenem. Vitek 2 Compact was used for bacterial identification and antimicrobial susceptibility testing. A virulence test in Omphisa fuscidentalis larvae showed R. insidiosa strain D had a low virulence.","PeriodicalId":17436,"journal":{"name":"Journal of water and health","volume":"22 9","pages":"1618-1627"},"PeriodicalIF":2.5,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142349150","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Environmental factors associated with Oncomelania hupensis lindoensis snails in a schistosomiasis-endemic area in Napu, Central Sulawesi. 中苏拉威西岛纳普血吸虫病流行区与林多钉螺有关的环境因素。

IF 2.5 4区环境科学与生态学

Journal of water and health Pub Date : 2024-09-01 Epub Date: 2024-09-02 DOI: 10.2166/wh.2024.108

Meiske Elisabeth Koraag, Octaviani Octaviani, Roy G A Massie, Felly Philipus Senewe, Djohan Djohan

{"title":"Environmental factors associated with Oncomelania hupensis lindoensis snails in a schistosomiasis-endemic area in Napu, Central Sulawesi.","authors":"Meiske Elisabeth Koraag, Octaviani Octaviani, Roy G A Massie, Felly Philipus Senewe, Djohan Djohan","doi":"10.2166/wh.2024.108","DOIUrl":"https://doi.org/10.2166/wh.2024.108","url":null,"abstract":"The presence of the freshwater snail Oncomelania hupensis lindoensis in their habitats is influenced by abiotic environmental factors (nutrients, water salinity, and predators) that play a crucial role in maintaining snail survival. The objective of this study is to determine the relationship between environmental factors and the presence of O. hupensis lindoensis snails in the Napu Valley, one of the Schistosomiasis-endemic areas in Indonesia. Eight environmental factors were measured in three different habitats: a seepage, a ditch, and a pond. The study found O. hupensis lindoensis snails in all three habitats, with significant differences in their numbers (p < 0.05). The seepage habitat had the highest snail density (762.22 snails per m2) compared to the other habitats. Phosphorus levels were highest in the seepage habitat compared to the other habitats, while nitrogen levels were highest in the pond habitat. Pearson correlation analysis found a significant positive correlation between O. hupensis lindoensis snails and water salinity in the ditch habitat (p < 0.05). In addition to environmental factors, the presence of snails can also be influenced by other factors, such as the presence of snail predators, the presence of snail nutrients, and the population of snail host niche competitors.","PeriodicalId":17436,"journal":{"name":"Journal of water and health","volume":"22 9","pages":"1641-1649"},"PeriodicalIF":2.5,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142349152","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Is the Tigray region, Ethiopia also affected by fluoride in drinking water affecting public health? 埃塞俄比亚提格雷地区是否也受到饮用水中氟影响公众健康的影响？

IF 2.5 4区环境科学与生态学

Journal of water and health Pub Date : 2024-09-01 Epub Date: 2024-08-08 DOI: 10.2166/wh.2024.115

Berihu Teshale Mesfin, Abraha Gebrekidan Asgedom, Mekonen Tirfu Zekarias, Tesfamariam Teklu Gebretsadik, Amanual Hadera Tesfay, Bart Van der Bruggen

{"title":"Is the Tigray region, Ethiopia also affected by fluoride in drinking water affecting public health?","authors":"Berihu Teshale Mesfin, Abraha Gebrekidan Asgedom, Mekonen Tirfu Zekarias, Tesfamariam Teklu Gebretsadik, Amanual Hadera Tesfay, Bart Van der Bruggen","doi":"10.2166/wh.2024.115","DOIUrl":"https://doi.org/10.2166/wh.2024.115","url":null,"abstract":"The purpose of this study was to assess the levels of fluoride in drinking water and its health impact in Semema, Tigray, Ethiopia. Water samples were collected in February, March and April from three potential spring water sources, namely May Atkaru, May Sensela and May Liham. Each sample was analyzed for a variety of physicochemical parameters including fluoride using standard APHA procedures through double beam UV-Visible spectrophotometer, atomic absorption spectrophotometer and titrimetric methods. All the measured physicochemical parameters except hardness (345.78-368.35 mg/L) and alkalinity (231.3-354.6 mg/L) were recorded below the WHO permissible limit set for drinking water. The amount of fluoride in May Atkaru (4.00 mg/L) and May Sensela (3.89 mg/L) was significantly greater than the WHO permissible limit set for drinking water, 1.5 mg/L. Moreover, HQ > 1 from May Atkaru and May Sensela revealed the possibility of dental and skeletal fluorosis over extended exposure to fluoride irrespective of age and sex variations. This confirmed people in the area with mottled teeth are vulnerable to the excessive consumption of fluoride, which poses health risks. Therefore, it needs immediate interventions to minimize the debilitating effect of fluoride in drinking water by creating awareness among the community and policymakers to introduce low-cost defluoridation methods.","PeriodicalId":17436,"journal":{"name":"Journal of water and health","volume":"22 9","pages":"1650-1662"},"PeriodicalIF":2.5,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142349153","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Determinants of adoption of household water treatment in Haiti using two analysis methods: logistic regression and machine learning. 使用两种分析方法：逻辑回归和机器学习，分析海地采用家庭水处理方法的决定因素。

IF 2.5 4区环境科学与生态学

Journal of water and health Pub Date : 2024-09-01 Epub Date: 2024-08-21 DOI: 10.2166/wh.2024.376

Camille Heylen, Diona Antoine, Michael Ritter, Jean Marcel Casimir, Neil Van Dine, Jean Jackendy, Alice Leung, Dustin Wright, Daniele Lantagne

{"title":"Determinants of adoption of household water treatment in Haiti using two analysis methods: logistic regression and machine learning.","authors":"Camille Heylen, Diona Antoine, Michael Ritter, Jean Marcel Casimir, Neil Van Dine, Jean Jackendy, Alice Leung, Dustin Wright, Daniele Lantagne","doi":"10.2166/wh.2024.376","DOIUrl":"https://doi.org/10.2166/wh.2024.376","url":null,"abstract":"Household water treatment (HWT) is recommended when safe drinking water is limited. To understand determinants of HWT adoption, we conducted a cross-sectional survey with 650 households across different regions in Haiti. Data were collected on 71 demographic and psychosocial factors and 2 outcomes (self-reported and confirmed HWT use). Data were transformed into 169 possible determinants of adoption across nine categories. We assessed determinants using logistic regression and, as machine learning methods are increasingly used, random forest analyses. Overall, 376 (58%) respondents self-reported treating or purchasing water, and 123 (19%) respondents had residual chlorine in stored household water. Both logistic regression and machine learning analyses had high accuracy (area under the receiver operating characteristic curve (AUC): 0.77-0.82), and the strongest determinants in models were in the demographics and socioeconomics, risk belief, and WASH practice categories. Determinants that can be influenced inform HWT promotion in Haiti. It is recommended to increase access to HWT products, provide cash and education on water treatment to emergency-impacted populations, and focus future surveys on known determinants of adoption. We found both regression and machine learning methods need informed, thoughtful, and trained analysts to ensure meaningful results and discuss the benefits/drawbacks of analysis methods herein.","PeriodicalId":17436,"journal":{"name":"Journal of water and health","volume":"22 9","pages":"1606-1617"},"PeriodicalIF":2.5,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142349151","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Antimicrobial resistance characterization of Enterococcus faecium, Enterococcus faecalis and Enterococcus hirae isolated from marine coastal recreational waters in the State of São Paulo, Brazil. 从巴西圣保罗州海滨休闲水域分离的粪肠球菌、粪肠球菌和平肠球菌的抗菌药耐药性特征。

IF 2.5 4区环境科学与生态学

Journal of water and health Pub Date : 2024-09-01 Epub Date: 2024-08-23 DOI: 10.2166/wh.2024.098

Giovanna Silva Santiago, Milena Dropa, Solange Martone-Rocha, Talita Pereira Dos Santos, Vasco Tulio de Moura Gomes, Mikaela Renata Funada Barbosa, Maria Tereza Pepe Razzolini

{"title":"Antimicrobial resistance characterization of Enterococcus faecium, Enterococcus faecalis and Enterococcus hirae isolated from marine coastal recreational waters in the State of São Paulo, Brazil.","authors":"Giovanna Silva Santiago, Milena Dropa, Solange Martone-Rocha, Talita Pereira Dos Santos, Vasco Tulio de Moura Gomes, Mikaela Renata Funada Barbosa, Maria Tereza Pepe Razzolini","doi":"10.2166/wh.2024.098","DOIUrl":"https://doi.org/10.2166/wh.2024.098","url":null,"abstract":"Coastal water quality is facing increasing threats due to human activities. Their contamination by sewage discharges poses significant risks to the environment and public health. We aimed to investigate the presence of antibiotic-resistant Enterococcus in beach waters. Over a 10-month period, samples were collected from four beaches in the State of São Paulo (Brazil). Enterococcus isolates underwent matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF/MS) and molecular analysis for accurate genus and species identification. The antimicrobial susceptibility for 14 antibiotics was evaluated using the disc diffusion method followed by a multidrug-resistance (MDR) classification. PCR amplification method was used to detect antimicrobial resistance genes (ARGs). Our findings revealed the prevalence of Enterococcus faecalis, E. faecium and E. hirae. Out of 130 isolates, 118 were resistant to multiple antibiotics. The detection of resistance genes provided evidence of the potential transfer of antibiotic resistance within the environment. Our findings underscore the necessity for continuous research and surveillance to enhance understanding of the pathogenicity and antimicrobial resistance mechanisms of Enterococcus, which is crucial to implement effective measures to preserve the integrity of coastal ecosystems.","PeriodicalId":17436,"journal":{"name":"Journal of water and health","volume":"22 9","pages":"1628-1640"},"PeriodicalIF":2.5,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142349149","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Occurrence of pathogenic Mycobacteria avium and Pseudomonas aeruginosa in outdoor decorative fountain water and the associated microbial community. 室外装饰性喷泉水中致病分枝杆菌和铜绿假单胞菌的存在及其相关微生物群落。

IF 2.5 4区环境科学与生态学

Journal of water and health Pub Date : 2024-09-01 Epub Date: 2024-08-14 DOI: 10.2166/wh.2024.117

Qiaomei Zhou, Jingang Huang, Shilin Wen, Yucheng Lou, Shanshan Qiu, Huanxuan Li, Rongbing Zhou, Junhong Tang

{"title":"Occurrence of pathogenic Mycobacteria avium and Pseudomonas aeruginosa in outdoor decorative fountain water and the associated microbial community.","authors":"Qiaomei Zhou, Jingang Huang, Shilin Wen, Yucheng Lou, Shanshan Qiu, Huanxuan Li, Rongbing Zhou, Junhong Tang","doi":"10.2166/wh.2024.117","DOIUrl":"https://doi.org/10.2166/wh.2024.117","url":null,"abstract":"Outdoor decorative fountains usually attract residents to visit. However, opportunistic pathogens (OPs) can proliferate and grow in the stagnant fountain water, posing potential health risks to visitors due to the inhalation of spaying aerosols. In this study, the abundance of selected OPs and associated microbial communities in three large outdoor decorative fountain waters were investigated using quantitative PCR and 16S rRNA sequencing. The results indicated that Mycobacteria avium and Pseudomonas aeruginosa were consistently detected in all decorative fountain waters throughout the year. Redundancy analysis showed that OPs abundance was negatively correlated with water temperature but positively correlated with nutrient concentrations. The gene copy numbers of M. avium varied between 2.4 and 3.9 log10 (gene copies/mL), which were significantly lower than P. aeruginosa by several orders of magnitude, reaching 6.5-7.1 log10 (gene copies/mL) during winter. The analysis of taxonomic composition and prediction of functional potential also revealed pathogenic microorganisms and infectious disease metabolic pathways associated with microbial communities in different decorative fountain waters. This study provided a deeper understanding of the pathogenic conditions of the outdoor decorative fountain water, and future works should focus on accurately assessing the health risks posed by OPs in aerosols.","PeriodicalId":17436,"journal":{"name":"Journal of water and health","volume":"22 9","pages":"1663-1676"},"PeriodicalIF":2.5,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142349155","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Antibiotic resistance of E. coli isolates from different water sources in Mbarara, Uganda. 从乌干达姆巴拉拉不同水源分离的大肠杆菌的抗生素耐药性。

IF 2.5 4区环境科学与生态学

Journal of water and health Pub Date : 2024-09-01 Epub Date: 2024-08-22 DOI: 10.2166/wh.2024.319

Abaasa Catherine N, Stange Claudia, Ayesiga Savino, Mulogo M Edgar, Kalyetsi Rogers, Lejju B Julius, Andama Morgan, Tamwesigire K Imelda, Bazira Joel, Byarugaba Frederick, Tiehm Andreas

{"title":"Antibiotic resistance of E. coli isolates from different water sources in Mbarara, Uganda.","authors":"Abaasa Catherine N, Stange Claudia, Ayesiga Savino, Mulogo M Edgar, Kalyetsi Rogers, Lejju B Julius, Andama Morgan, Tamwesigire K Imelda, Bazira Joel, Byarugaba Frederick, Tiehm Andreas","doi":"10.2166/wh.2024.319","DOIUrl":"https://doi.org/10.2166/wh.2024.319","url":null,"abstract":"Escherichia coli is widely used as an indicator of recent faecal pollution of water. Most E. coli strains are commensals; however, isolates in water samples have been shown to carry antibiotic resistance determinants. In total, 47 E. coli were isolated from selected drinking water sources in Mbarara, Uganda. The isolates were examined for their susceptibility to seven antibiotics and the presence of nine antibiotic-resistance genes (mostly β-lactamase genes) and class 1 integrons. Isolates showed a high resistance to ampicillin of 55.5% and a high sensitivity to azithromycin and gentamicin at 98 and 96%, respectively. PCR analysis showed the presence of extended-spectrum β-lactamase genes blaCTX-M-32 and blaCMY-2 in 64 and 36% of the isolates. The carbapenemase genes blaOXA-48, blaVIM-2, blaNDM-1, and blaKPC-3 were either not detected or only in a very small number of the isolates, whereas class 1 integrons were present in 68% of the isolates. This study proves that antimicrobial resistance exists in E. coli in water used for drinking purposes in Mbarara city. There is a need for public health actors to improve the surveillance of microbiological quality of drinking water to minimize health risks.","PeriodicalId":17436,"journal":{"name":"Journal of water and health","volume":"22 9","pages":"1579-1593"},"PeriodicalIF":2.5,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142349148","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0