ArticleEnvironmental monitoring and assessment2014
Antibiotic-resistant E. coli in surface water and groundwater in dairy operations in Northern California.
Article in Environmental monitoring and assessment, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers, 1 of them a synthesis that pooled it.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
23 citing papers in PubMed, 1 synthesis or guideline pooled it, 78 citations in OpenAlex.
- Do animal husbandry operations contaminate groundwater sources with antimicrobial resistance: systematic review.Environmental science and pollution research international · 2024Pooled it
- Identification and characterization ofJournal of water and health · 2026Article
- Analysis of Antimicrobial Residues and Resistance Profiles ofVeterinary sciences · 2025Article
- Epidemiology and molecular characterisation of multidrug-resistant Escherichia coli isolated from chicken meat.PloS one · 2025Article
- Investigation of Antibiotic Resistance ofMicroorganisms · 2024Article
- Microbiota and Resistome Analysis of Colostrum and Milk from Dairy Cows Treated with and without Dry Cow Therapies.Antibiotics (Basel, Switzerland) · 2023Article
- Molecular Detection of Tetracycline-Resistant Genes in Multi-Drug-ResistantAntibiotics (Basel, Switzerland) · 2023Article
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- PredictingFrontiers in artificial intelligence · 2022Article
- Enteric Viruses and Pepper Mild Mottle Virus Show Significant Correlation in Select Mid-Atlantic Agricultural Waters.Applied and environmental microbiology · 2021Article
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- ESBL ProducingFrontiers in public health · 2021Article
- In Vitro Antimicrobial Activities of Organic Acids and Their Derivatives on Several Species of Gram-Negative and Gram-Positive Bacteria.Molecules (Basel, Switzerland) · 2019Article
- Management factors associated with bovine respiratory disease in preweaned calves on California dairies: The BRD 100 study.Journal of dairy science · 2019Article
- Antibiotic Resistance ofFrontiers in microbiology · 2019Article
- The Changing Face of Water: A Dynamic Reflection of Antibiotic Resistance Across Landscapes.Frontiers in microbiology · 2018Article
- Prevalence and characterization of Escherichia coli isolated from the Upper Oconee Watershed in Northeast Georgia.PloS one · 2018Article
- Occurrence of multidrug resistantVeterinary world · 2017Article
- Article
- Tetracyclines in Food and Feedingstuffs: From Regulation to Analytical Methods, Bacterial Resistance, and Environmental and Health Implications.Journal of analytical methods in chemistry · 2017Review
Corrections and comments
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Authors and funding
7 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Generic Escherichia coli was isolated from surface water and groundwater samples from two dairies in Northern California and tested for susceptibility to antibiotics. Surface samples were collected from flush water, lagoon water, and manure solids, and groundwater samples were collected from monitoring wells. Although E. coli was ubiquitous in surface samples with concentrations ranging from several hundred thousand to over a million colony-forming units per 100 mL of surface water or per gram of surface solids, groundwater under the influence of these high surface microbial loadings had substantially fewer bacteria (3- to 7-log10 reduction). Among 80 isolates of E. coli tested, 34 (42.5%) were resistant to one or more antibiotics and 22 (27.5%) were multi-antibiotic resistant (resistant to ≥3 antibiotics), with resistance to tetracycline, cefoxitin, amoxicillin/clavulanic acid, and ampicillin being the most common. E. coli isolates from the calf hutch area exhibited the highest levels of multi-antibiotic resistance, much higher than isolates in surface soil solids from heifer and cow pens, flush alleys, manure storage lagoons, and irrigated fields. Among E. coli isolates from four groundwater samples, only one sample exhibited resistance to ceftriaxone, chloramphenicol, and tetracycline, indicating the potential of groundwater contamination with antibiotic-resistant bacteria from dairy operations.
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What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.