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Updated: Mar 26, 2026

Author Spotlight: Efficiently Eliminating Bacteriophages from Infected Salmonella Cultures Using Lipopolysaccharides
Published on: June 28, 2024
[RATIONAL ASPECTS OF BACTERIOPHAGES USE]
Aim:
Analysis of existing aspects of bacteriophage use and study features of their lytic activity by using various techniques.
Materials And Methods:
Effect of monophages and associated bacteriophages (staphylococci, piopolyvalent and piocombined, intestiphage, pneumonia klebsiella and polyvalent klebsiella produced by "Microgen") was studied with 380 strains of Staphylococcus aureus and 279 cultures of Klebsiella pneumoniae in liquid and solid nutrient media. From patients with intestinal disorder, sensitivity was analyzed to 184 strains of Salmonella genus bacteria 18 serological variants to salmonella bacteriophages, 137 strains of Escherichia coli (lactose-negative, hemolytic), as well as some members of OKA groups (21 serovars) to coli-proteic and piopolyvalent bacteriophages. Lytic ability of the piobacteriophage against Klebsiella and Proteus genus bacteria was determined.
Results:
Staphylococcus aureus was sensitive to staphylococcus bacteriophage in 71.6% of cases and to piobacteriophage--in 86.15% of cases. A 100% lytic ability of salmonella bacteriophage against Salmonella spp. was established. Sensitivity of E. coli of various serogroups to coli-proteic and piobacteriophage was 66 - 100%. Klebsiella, Proteus genus bacteria were sensitive to piobacteriophage in only 35% and 43.15% of cases, respectively.
Conclusion:
A more rational use of bacteriophages is necessary: development of a technique, evaluation of sensitivity of bacteria to bacteriophage, introduction of corrections into their production (expansion of bacteriophage spectra, determination and indication of their concentration in accompanying documents).
Insights
Bacteriophage therapy shows variable efficacy against bacterial pathogens. Optimizing bacteriophage production and application is crucial for effective treatment of Staphylococcus aureus, Salmonella, and E. coli infections.
Area of Science:
- Microbiology
- Bacteriophage Therapy
- Antimicrobial Resistance
Background:
- Bacteriophages (phages) are viruses that infect bacteria and have potential as therapeutic agents.
- Evaluating the lytic activity of various bacteriophages against clinically relevant bacterial strains is essential for their therapeutic application.
Purpose of the Study:
- To analyze existing bacteriophage applications and study their lytic activity against Staphylococcus aureus, Klebsiella pneumoniae, Salmonella, and Escherichia coli.
- To assess the effectiveness of specific bacteriophages, including monophages and polyvalent preparations.
Main Methods:
- Tested the lytic activity of staphylococcal, piopolyvalent, intestiphage, klebsiella, and coli-proteic bacteriophages.
- Utilized 380 Staphylococcus aureus strains and 279 Klebsiella pneumoniae cultures.
- Assessed sensitivity of Salmonella, Escherichia coli, and Proteus strains to specific bacteriophages.
Main Results:
- Staphylococcus aureus showed 71.6% sensitivity to staphylococcus bacteriophage and 86.15% to pi bacteriophage.
- Salmonella bacteriophage demonstrated 100% lytic activity against Salmonella spp.
- Escherichia coli sensitivity ranged from 66-100%, while Klebsiella and Proteus showed lower sensitivity (35% and 43.15%) to pi bacteriophage.
Conclusions:
- Bacteriophage therapy requires rationalized application, including improved production and sensitivity testing.
- Expanding bacteriophage spectra and standardizing concentration indications are necessary for effective use.
- Further research is needed to optimize bacteriophage cocktails and production methods.
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