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Neisseria meningitidis strains with decreased susceptibility to penicillin
Abstract:
Neisseria meningitidis strains relatively resistant to penicillin were recovered from blood or cerebrospinal fluid cultures of four children treated in Barcelona, Spain, and surrounding areas. The four strains had distinct serogrouping and serotyping patterns. The minimal inhibitory concentrations of penicillin were 0.25 microgram/ml for three strains and 0.5 microgram/ml for the fourth strain. These are the first relatively penicillin-resistant meningococcal strains identified in Spain.
Insights
Penicillin-resistant Neisseria meningitidis strains were found in four children in Spain. This is the first identification of such resistant meningococcal strains in the country, highlighting a potential public health concern.
Area of Science:
- Microbiology
- Infectious Diseases
- Antimicrobial Resistance
Background:
- Neisseria meningitidis is a leading cause of bacterial meningitis and sepsis.
- Penicillin has been a primary treatment for meningococcal infections.
- Emergence of antimicrobial resistance is a significant global health challenge.
Observation:
- Four distinct strains of Neisseria meningitidis with reduced susceptibility to penicillin were isolated from pediatric patients.
- These isolates originated from blood or cerebrospinal fluid cultures in Barcelona, Spain, and surrounding regions.
- The minimal inhibitory concentrations (MICs) for penicillin ranged from 0.25 to 0.5 microgram/ml.
Findings:
- This study reports the first documented cases of relatively penicillin-resistant Neisseria meningitidis in Spain.
- The identified strains exhibited varying serogrouping and serotyping patterns, indicating diverse origins.
- The observed penicillin resistance levels necessitate careful consideration in treatment strategies.
Implications:
- The emergence of penicillin resistance in Neisseria meningitidis strains in Spain requires enhanced surveillance.
- Clinical guidelines for treating meningococcal disease may need re-evaluation based on these findings.
- Further research into the mechanisms of resistance and epidemiological spread is crucial.