Susceptibility to six antibiotics of group B streptococci isolated from cerebrospinal fluid

Area of Science:

• Clinical microbiology
• Neonatal infectious diseases
• Antibiotic resistance

Background:

• Group B Streptococcus (GBS) is a leading cause of neonatal infections, including meningitis.
• Antimicrobial susceptibility patterns of GBS can vary geographically and over time.
• Effective antibiotic therapy is crucial for managing GBS infections in neonates.

Purpose of the Study:

• To evaluate the antibiotic susceptibility of clinical isolates of GBS from neonatal cerebrospinal fluid (CSF).
• To assess the effectiveness of ampicillin and gentamicin, a common initial therapeutic combination, against these GBS strains.

Main Methods:

• Sixty-four clinical isolates of GBS were collected from neonatal CSF samples over a 7-year period in The Netherlands.
• Susceptibility testing was performed for six different antibiotics, including ampicillin and gentamicin.

Main Results:

• The study analyzed the resistance patterns of GBS isolates to commonly used antibiotics.
• Results indicated continued susceptibility of the majority of GBS strains to the combination of ampicillin and gentamicin.

Conclusions:

• The findings support the continued use of ampicillin and gentamicin as the recommended initial empirical therapy for GBS meningitis in neonates.
• Ongoing surveillance of antibiotic resistance in GBS is essential to guide treatment strategies.