Related Experiment Videos

Prevalence of pneumococci with increased resistance to penicillin in Saudi Arabia

S M Qadri1, R Kroschinsky

  • 1King Faisal Specialist Hospital and Research Centre, Riyadh, Kingdom of Saudi Arabia.

Insights

Penicillin resistance in Streptococcus pneumoniae is a growing concern. Over 30% of clinical isolates tested showed resistance, highlighting the need for monitoring antimicrobial susceptibility.

Area of Science:

  • Microbiology
  • Infectious Diseases
  • Antimicrobial Resistance

Background:

  • Streptococcus pneumoniae is a leading cause of bacterial infections worldwide.
  • Penicillin remains a cornerstone antibiotic for treating pneumococcal infections.
  • Emergence of penicillin-resistant strains poses a significant public health threat.

Purpose of the Study:

  • To determine the prevalence of penicillin resistance in clinical isolates of Streptococcus pneumoniae.
  • To assess the sensitivity of Streptococcus pneumoniae to penicillin.

Main Methods:

  • Clinical specimens including blood, cerebrospinal fluid, and respiratory tract samples were collected from 268 patients.
  • Isolates of Streptococcus pneumoniae were identified from these specimens.
  • Antimicrobial susceptibility testing was performed using 1 microgram oxacillin disks to evaluate penicillin sensitivity.

Main Results:

  • A total of 268 Streptococcus pneumoniae isolates were analyzed.
  • Eighty-four isolates (31%) exhibited relative resistance to penicillin.
  • This indicates a substantial proportion of clinical isolates are not fully susceptible to penicillin.

Conclusions:

  • A significant prevalence of penicillin resistance was observed in the studied Streptococcus pneumoniae isolates.
  • The findings underscore the importance of routine antimicrobial susceptibility testing.
  • Continuous surveillance is crucial for guiding appropriate antibiotic therapy and combating resistance.

Related Concept Videos