ArticlePeerJ2021
Epidemiology of antimicrobial resistance (AMR) on California dairies: descriptive and cluster analyses of AMR phenotype of fecal commensal bacteria isolated from adult cows.
Article in PeerJ, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 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.
The trial behind it
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
16 citing papers in PubMed, 1 synthesis or guideline pooled it, 19 citations in OpenAlex.
- Quantifying antimicrobial resistance in food-producing animals in North America.Frontiers in microbiology · 2025Pooled it
- Epidemiology of Antimicrobial Residues and Phenotypic Resistance of Bacterial Isolates from Waste Milk on California Dairies.Microorganisms · 2026Article
- Analysis of Antimicrobial Residues and Resistance Profiles ofVeterinary sciences · 2025Article
- Genomic analysis of multidrug-resistantFrontiers in microbiology · 2025Article
- Salmon-IgM Functionalized-PLGA Nanosystem for Florfenicol Delivery as an Antimicrobial Strategy againstNanomaterials (Basel, Switzerland) · 2024Article
- Antimicrobial resistance and prevalence of extended-spectrum beta-lactamase-producingMicrobiology spectrum · 2024Article
- Antimicrobial Susceptibility in Respiratory Pathogens and Farm and Animal Variables in Weaned California Dairy Heifers: Logistic Regression and Bayesian Network Analyses.Antibiotics (Basel, Switzerland) · 2024Article
- Antimicrobial drug use and its association with antimicrobial resistance in fecal commensals from cows on California dairies.Frontiers in veterinary science · 2024Article
- Management Practices of Bovine Mastitis and Milk Quality on Egyptian Dairies.Veterinary sciences · 2023Article
- Effect of Group Housing of Preweaned Dairy Calves: Health and Fecal Commensal Antimicrobial Resistance Outcomes.Antibiotics (Basel, Switzerland) · 2023Article
- Prevalence of antimicrobial resistance in fecalFrontiers in microbiology · 2023Article
- Evaluation of antimicrobial resistance and risk factors for recovery of intrauterine Escherichia coli from cows with metritis on California commercial dairy farms.Scientific reports · 2022Article
- Strategies for Enzymatic Inactivation of the Veterinary Antibiotic Florfenicol.Antibiotics (Basel, Switzerland) · 2022Article
- Effects of age and pasture type on the concentration and prevalence of tetracycline and macrolide resistantFrontiers in antibiotics · 2022Article
- Molecular Mechanisms Underlying the Inhibition of Proliferation and Differentiation by Florfenicol in P19 Stem Cells: Transcriptome Analysis.Frontiers in pharmacology · 2022Article
- Effect of Antimicrobial Treatment on the Dynamics of Ceftiofur Resistance in Enterobacteriaceae from Adult California Dairy Cows.Microorganisms · 2021Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
15 authors at 5 institutions in 3 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundThis study describes the occurrence of antimicrobial resistance (AMR) in commensal
methodsThe study was conducted on ten dairies distributed across CA's three milk sheds: Northern California (NCA), Northern San Joaquin Valley (NSJV), and the Greater Southern California (GSCA). On each study dairy, individual fecal samples were collected from two cohorts of lactating dairy cows during the fall/winter 2018 and spring/summer 2019 seasons. Each cohort comprised of 12 cows per dairy. The fecal samples were collected at enrollment before calving (close-up stage) and then monthly thereafter for four consecutive time points up to 120 days in milk. A total of 2,171
resultsThe
conclusionsOur findings showed high rates of AMR to several drugs that are not labeled for use in lactating dairy cattle 20 months of age or older. Conversely, very low resistance was observed for drugs labeled for use in adult dairy cows, such as cephalosporins and penicillin. Overall, our findings identified important differences in AMR by antimicrobial class, region and season.
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Identifiers
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.