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  • Fecal
  • The science of microbial source tracking has allowed researchers and watershed managers to go beyond general indicators of fecal pollution in water such as coliforms and enterococci, and to move toward an understanding of specific contributors to water quality issues. (asmscience.org)
  • The premise of microbial source tracking is that characteristics of microorganisms that are strongly associated with particular host species can be used to trace fecal pollution to particular animal species (including humans) or groups, e.g., ruminants or birds. (asmscience.org)
  • Nguyen, M.T., Jasper, J.T., Boehm, A.B., Nelson, K.L. (2015) "Sunlight inactivation of fecal indicator bacteria in open-water unit process treatment wetlands: Modeling endogenous and exogenous inactivation rates" Water Research . (berkeley.edu)
  • A total of 114 river samples from five different locations were collected over a 1-year period and analyzed for human adenoviruses, along with fecal indicator bacteria and coliphages. (asm.org)
  • Analysis by Spearman's rho rank order correlation showed significant correlations between fecal indicator bacteria and indicator virus (total coliform, fecal coliform, enterococcus, and coliphage values). (asm.org)
  • However, no significant correlations were found between human adenoviruses quantified by real-time PCR and culturable coliphages or fecal indicator bacteria. (asm.org)
  • Kruskal-Wallis chi-square analysis showed significant seasonal variability of all fecal indicator bacteria and coliphages, while no significant variability was observed for adenoviruses or enteroviruses. (asm.org)
  • This study presents the first quantitative measurement of human adenovirus genomes in urban rivers and their statistical relationship to fecal indicator bacteria and coliphages. (asm.org)
  • The U.S. Environmental Protection Agency has established microbial pollution indicator standards recommending the use of bacterial indicators, including counts of total and fecal coliforms and enterococci, during routine monitoring ( 10 ). (asm.org)
  • framework
  • Towards a general framework for the assessment of interactive effects of multiple stressors on aquatic ecosystems: Results from the Making Aquatic Ecosystems Great Again (MAEGA) workshop. (nih.gov)
  • antibiotic resistance
  • Novel virulence, antibiotic resistance and toxin gene-specific PCR-based assays for rapid pathogenicity assessment of Arcobacter faecis and Arcobacter lanthieri. (nih.gov)
  • To this end, methods will be optimized for sensitive, specific detection of AR targets in complex ecosystems and studies will be conducted to quantify (1) the effect of poultry litter re-use on the development and persistence of bacteria with antibiotic resistance and (2) to evaluate the effect of residual antibiotics and manure nutrients on the native soil AR microbiota and the manure-associated AR microbiota. (usda.gov)
  • fungi
  • Dr. Dannemiller has extensive experience with next-generation DNA sequencing of fungi and bacteria, and using this data she has also addressed relevant challenges bioinformatics, including software development, and in statistics, to demonstrate complex associations with human health outcomes. (osu.edu)
  • viable
  • The low numbers of viable canker bacteria associated with peel lesions in grapefruit, especially over time, suggest that the risk of canker transmission from them is extremely low in comparison to active lesions on the leaves, stems and fruit during the growing season. (apsnet.org)
  • water quality
  • Chaudhry, R.M., Hamilton, K.A., Haas, C.N., and K.L. Nelson (2017) "Drivers of Microbial Risk for Direct Potable Reuse and de Facto Reuse Treatment Schemes: The Impacts of Source Water Quality and Blending. (berkeley.edu)
  • 2016). "Intermittent water supply: Prevalence, Practice, and Microbial Water Quality. (berkeley.edu)
  • Future research should explore the influence of demographic and ethno-economic factors on water quality during microbial risk assessments in urban Africa. (iwaponline.com)
  • coli
  • The results showed that although irrigation water was highly contaminated (5.6 Log E. coli /100 ml), exposure to farm soil (2.3 Log E. coli /g) was found to be the key risk pathway due to soil-to-mouth events. (biomedcentral.com)
  • The risks were drastically reduced, from 59% to 4% for E. coli O157:H7, and from 46% to 2% for norovirus for cilantro in post-harvest washing and disinfection scenario. (barfblog.com)
  • environmental
  • New greywater systems, including one developed at the Zuckerberg Institute, now make reuse economically feasible on both a national and household scale, provided it is handled responsibly to eliminate potential environmental and health risks. (eurekalert.org)
  • This work demonstrates that only testing environmental samples for bacteria and ATP may not give a total view of the microbiological problem in the home. (cambridge.org)
  • Reuse
  • Epidemiological Study for the Assessment of Health Risks Associated with Greywater Reuse for Irrigation in Arid Regions research funding was provided by the Rosenzweig-Coopersmith Foundation (RCF) and Zuck Macabi Foundation. (eurekalert.org)
  • Biological
  • From a risk assessment perspective, alterations in biological pathways are a rich resource for setting toxicant thresholds, which may be more sensitive and mechanism-informed than traditional toxicity endpoints. (biomedcentral.com)
  • In addition to a fundamental background in engineering and quantitative sciences, her skillset in microbiology includes phylogenetics, metagenomics, proteomics, and transcriptomics and allows for exploration of microbial communities and biological processes. (osu.edu)
  • Irrigation
  • SEDE BOQER, Israel - Dec. 16, 2015 - Researchers at the Zuckerberg Institute for Water Research at Ben-Gurion University of the Negev have determined that treated greywater is safe for irrigation and does not pose a risk for gastrointestinal illness or water-related diseases. (eurekalert.org)
  • study
  • Findings from this proof-of-concept study suggest that our approach has a great potential in providing a novel and sensitive tool for threshold setting in chemical risk assessment. (biomedcentral.com)
  • source
  • Microbial source tracking methods are practiced largely in the realm of research, and none are approved for regulatory uses on a federal level. (asmscience.org)
  • human
  • Staphylococcus aureus and the tetracycline-resistance gene ( tet Q) were assessed to measure human hand contact and presence of antibiotic-resistant bacteria. (iwaponline.com)
  • research
  • Dr. Dannemiller's current research is on microbial activity in house dust and biotransformation of phthalates in homes, and she is excited to tackle new challenges as an assistant professor at The Ohio State University. (osu.edu)