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Updated: Sep 17, 2026

Biosensor for Detection of Antibiotic Resistant Staphylococcus Bacteria
Published on: May 8, 2013
Predominant phage types of coagulase positive staphylococci in hospital infections
U Arora1, T Jesupadam, P K Jain
1G.G.S. Medical College, Faridkot.
Abstract:
360 strains of Staphylococcus aureus isolated from various clinical specimens were subjected to bacteriophage typing. 247(68.6%) strains were typable. Among the typable strains 75(20.83%) belonged to phage group I, 45(12.5%) belonged to phage group III, 6(1.67%) belonged to phage group II and 14(3.89%) strains belonged to miscellaneous group. By far, the largest was the mixed group having 107(29.72%) strains. 113 strains (31.4%) were untypable. All the strains were tested for antibiotic sensitivity test. 287 (79.7%) were multiple drug resistant strains.
Insights
Bacteriophage typing revealed Staphylococcus aureus phage group distribution in clinical isolates. A high prevalence of multiple drug-resistant strains was observed, highlighting significant antimicrobial resistance challenges.
Area of Science:
- Microbiology
- Infectious Diseases
- Clinical Bacteriology
Background:
- Staphylococcus aureus is a significant human pathogen.
- Understanding its phage types and antibiotic resistance patterns is crucial for infection control.
Purpose of the Study:
- To characterize the phage types of Staphylococcus aureus clinical isolates.
- To determine the antibiotic resistance profiles of these isolates.
Main Methods:
- 360 Staphylococcus aureus strains from clinical specimens were analyzed.
- Bacteriophage typing was performed to classify strains into phage groups.
- Antibiotic sensitivity testing was conducted for all isolates.
Main Results:
- 68.6% of strains were typable by bacteriophage typing.
- The mixed phage group was the most prevalent (29.72%).
- 79.7% of strains exhibited multiple drug resistance.
Conclusions:
- Phage typing provides insights into the epidemiology of Staphylococcus aureus.
- The high rate of multidrug resistance in Staphylococcus aureus clinical isolates is a major concern.
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