Related Experiment Video
Updated: May 28, 2026

Visualization of Bacterial Resistance using Fluorescent Antibiotic Probes
Published on: March 2, 2020
Resistance pattern of ciprofloxacin against different pathogens
Objectives:
Ciprofloxacin is a broad-spectrum antibiotic widely prescribed in clinical and hospital settings. The emergence of antimicrobial resistance against effective antibiotics is a global issue. The objective of study is the surveillance of ciprofloxacin against common pathogens.
Methods:
To investigate the present status of antimicrobial resistance against ciprofloxacin, five hundred and twenty four clinical isolates of Escherichia coli (30%), Staphylococcus aureus (33%), Salmonella typhi (9%), Klebsiella pneumonia (14%) and Pseudomonas aeruginosa (14%) were collected during study from January, 2008 to February, 2009 from different pathological laboratories running in and out side hospitals located in Karachi, Pakistan. These pathogens were isolated from specimens of both in and out patients. The in-vitro antimicrobial activity of ciprofloxacin was carried out by Disc Diffusion Method (Kirby-Bauer test).
Results:
Showed that ciprofloxacin is 27.02%, 21.95%, 16.66%, 72.22% and 44.44% resistant to Escherichia coli, Staphylococcus aureus, Salmonella typhi, Klebsiella pneumonia and Pseudomonas aeruginosa respectively.
Conclusion:
It is concluded that these clinical isolates have started developing resistance against ciprofloxacin due to its irrational and inappropriate use. Continuous surveillance is crucial to monitor the antimicrobial resistance among pathogens.
Insights
Antimicrobial resistance to ciprofloxacin is increasing among common pathogens like Escherichia coli and Klebsiella pneumoniae. This study highlights the urgent need for surveillance to monitor resistance patterns and guide antibiotic use.
Area of Science:
- Microbiology
- Infectious Diseases
- Pharmacology
Background:
- Ciprofloxacin is a widely used broad-spectrum antibiotic.
- Antimicrobial resistance is a significant global health concern.
- Monitoring resistance patterns is crucial for effective treatment.
Purpose of the Study:
- To conduct surveillance of ciprofloxacin resistance in common clinical pathogens.
- To investigate the current status of antimicrobial resistance against ciprofloxacin.
Main Methods:
- Collected 524 clinical isolates: Escherichia coli, Staphylococcus aureus, Salmonella typhi, Klebsiella pneumoniae, and Pseudomonas aeruginosa.
- Isolates were collected from January 2008 to February 2009 in Karachi, Pakistan.
- In-vitro antimicrobial activity was assessed using the Disc Diffusion Method (Kirby-Bauer test).
Main Results:
- Ciprofloxacin resistance varied among pathogens: E. coli (27.02%), S. aureus (21.95%), S. typhi (16.66%), K. pneumoniae (72.22%), P. aeruginosa (44.44%).
- High resistance rates were observed for Klebsiella pneumoniae and Pseudomonas aeruginosa.
Conclusions:
- Clinical isolates show emerging resistance to ciprofloxacin, likely due to irrational use.
- Continuous surveillance is essential to track antimicrobial resistance in pathogens.
- This data underscores the need for judicious antibiotic stewardship.
More Related Videos
07:28Metabolic Profiling to Determine Bactericidal or Bacteriostatic Effects of New Natural Products using Isothermal Microcalorimetry
Published on: October 29, 2020
08:30One-day Workflow Scheme for Bacterial Pathogen Detection and Antimicrobial Resistance Testing from Blood Cultures
Published on: July 9, 2012
Related Concept Videos
Inhibitors of Bacterial DNA Synthesis
Mechanism of Antibiotic Resistance in MRSA
Development of Antibiotic Resistance
Clinical Significance of Antibiotic Resistance
Antimicrobial Effectiveness
Urine Studies II: Urine Culture and Sensitivity Test