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Updated: Sep 30, 2026
Subcutaneous Infection of Methicillin Resistant Staphylococcus Aureus (MRSA)
Published on: February 9, 2011
[An epidemiological investigation for MRSA and PRSP in Kinki area. Kinki Infection Working Group]
Abstract:
Recent trends in the development of resistance of the Staphylococcus aureus and Streptococcus pneumoniae to antibiotics were investigated, using a questionnaire delivered to participants at a meeting of the Kinki District Society of Infections. Methicillin-resistant Staphylococcus aureus (MRSA) accounted for 55.4% of all isolated S. aureus, and more than 80% of MRSA was detected within hospitals. In outpatients, MRSA was often detected in pus, while in hospitalized patients, MRSA was often detected in sputum. Further, MRSA was accompanied by some other organisms (most frequently Pseudomonas aeruginosa) in 64.7% of MRSA positive patients. The sensitivity of MRSA to vancomycin (VCM) was 100%, to sulfamethoxazole-trimethoprim (ST) 99.2%, and to arbekacin, 98.6%. In contrast, Penicillin-resistant Streptococcus pneumoniae (PRSP) accounted for 42.4% of all isolates of Streptococcus pneumoniae. About 50% of PRSP was detected in out-patients. For both hospitalized patients and outpatients, PRSP was most frequently detected in sputum. PRSP was accompanied by some other organisms (most frequently Haemophilus influenzae) in 49.3% of PRSP positive patients, PRSP had high sensitivity to cephems, carbapenems and VCM.
Insights
Antibiotic resistance in Staphylococcus aureus and Streptococcus pneumoniae is a growing concern. Methicillin-resistant Staphylococcus aureus (MRSA) is prevalent in hospitals, while Penicillin-resistant Streptococcus pneumoniae (PRSP) is common in outpatients.
Area of Science:
- Infectious Diseases
- Microbiology
- Clinical Medicine
Background:
- Antibiotic resistance poses a significant threat to public health.
- Monitoring resistance patterns of key pathogens like Staphylococcus aureus and Streptococcus pneumoniae is crucial.
Purpose of the Study:
- To investigate recent trends in antibiotic resistance of Staphylococcus aureus and Streptococcus pneumoniae.
- To identify the prevalence and characteristics of Methicillin-resistant Staphylococcus aureus (MRSA) and Penicillin-resistant Streptococcus pneumoniae (PRSP).
Main Methods:
- A questionnaire was distributed to participants at a Kinki District Society of Infections meeting.
- Data on isolated S. aureus and S. pneumoniae, including resistance patterns and detection sites, were collected.
Main Results:
- Methicillin-resistant Staphylococcus aureus (MRSA) constituted 55.4% of S. aureus isolates, predominantly hospital-acquired.
- Penicillin-resistant Streptococcus pneumoniae (PRSP) accounted for 42.4% of S. pneumoniae isolates, with a significant presence in outpatients.
- MRSA showed high sensitivity to vancomycin (VCM), sulfamethoxazole-trimethoprim (ST), and arbekacin.
- PRSP demonstrated high sensitivity to cephems, carbapenems, and VCM.
Conclusions:
- High rates of MRSA and PRSP necessitate ongoing surveillance and strategic treatment approaches.
- Understanding the differing prevalence and detection sites of MRSA and PRSP is vital for effective infection control.
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