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Updated: Aug 10, 2026

Biosensor for Detection of Antibiotic Resistant Staphylococcus Bacteria
Published on: May 8, 2013
[The current state of staphylococcal resistance to chemotherapeutics]
Abstract:
62 Staphylococci strains classified according to their ability to produce coagulase and their hemolytic activity were tested on susceptibility to 21 antibacterial substances. The tests were carried out with the agar diffusion and agar dilution methods (mostly ADATAB-System: Breakpoint-method with prefabricated tablets). The majority of the investigated strains showed sufficient susceptibility towards the tested substances. For treatment of multi-resistant strains narrow-spectrum antibiotics are recommended. The antibacterial activity of the combination metronidazol with mezlocillin or oxacillin was exclusively determined by the penicillins used.
Insights
This study assessed 62 Staphylococci strains against 21 antibacterial agents. Most strains were susceptible, but narrow-spectrum antibiotics are advised for multi-resistant Staphylococcus strains.
Area of Science:
- Microbiology
- Bacteriology
- Antimicrobial Resistance
Context:
- Staphylococci are significant human pathogens.
- Antimicrobial susceptibility testing is crucial for effective treatment.
- Coagulase and hemolytic activity are key markers for Staphylococci classification.
Purpose:
- To evaluate the susceptibility of Staphylococci strains to various antibacterial substances.
- To determine the efficacy of different antimicrobial agents against Staphylococci.
- To provide guidance on antibiotic selection for Staphylococci infections.
Summary:
- Sixty-two Staphylococci strains, differentiated by coagulase production and hemolytic activity, were tested against 21 antibacterial agents using agar diffusion and dilution methods.
- The majority of Staphylococci strains exhibited adequate susceptibility to the tested antibiotics.
- For managing multi-resistant Staphylococci strains, the use of narrow-spectrum antibiotics is recommended.
- The antibacterial effect of metronidazole combined with mezlocillin or oxacillin was solely dependent on the penicillin component.
Impact:
- Informs clinical decisions regarding antibiotic therapy for Staphylococci infections.
- Highlights the importance of susceptibility testing in the face of evolving antimicrobial resistance.
- Contributes to understanding the mechanisms of action for antibiotic combinations involving Staphylococci.
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