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June 18, 2026Foodborne Pathogens and Disease

Characterization of Virulence Factors, Biofilm Production, and Antimicrobial Resistance in Mastitis-Associated Staphylococcus aureus Strains by Phenotypic and Genotypic Methods

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The study aims to characterize virulence factors, biofilm production, and antimicrobial resistance in Staphylococcus aureus strains from bovine mastitis.
Analyzed 120 milk samples from West Bengal and Uttar Pradesh for S. aureus strains, confirming 36 isolates through conventional methods and PCR.
Conducted phenotypic and molecular analyses to determine virulence factors, biofilm production, and antimicrobial resistance genes.
Assessed biofilm formation using crystal violet and Congo red agar assays.
Detected virulence factors: hemolysin (55.55%), coagulase (36.11%), and various toxin genes in strains.
Identified 97.22% biofilm production through crystal violet assay and 86.11% via Congo red agar assay. Antimicrobial resistance was found in 88.88% of isolates, with 72.22% showing multidrug resistance (MDR).
Found that 83.33% of isolates were methicillin-resistant S. aureus (MRSA), with genes associated with resistance present in 76.66%.

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Implication

Randomized trial characterizes virulence and resistance in mastitis-associated Staphylococcus aureus, highlighting significant public health concerns.

Cite This Study

Sarkar et al. (2026) studied this question.

synapsesocial.com/papers/6a338db6630953a74978e7fd https://doi.org/10.1177/15353141261460684

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Implication

Randomized trial characterizes virulence and resistance in mastitis-associated Staphylococcus aureus, highlighting significant public health concerns.

Characterization of Virulence Factors, Biofilm Production, and Antimicrobial Resistance in Mastitis-Associated Staphylococcus aureus Strains by Phenotypic and Genotypic Methods

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Discussion

Implication

Cite This Study

Characterization of Virulence Factors, Biofilm Production, and Antimicrobial Resistance in Mastitis-Associated Staphylococcus aureus Strains by Phenotypic and Genotypic Methods

Key Points

Discussion

Implication

Cite This Study

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