Analysis of Staphylococcus aureus infections among pediatric Indian patients

Area of Science:

• Pediatric Infectious Diseases
• Clinical Microbiology
• Antimicrobial Resistance

Background:

• Staphylococcus aureus is a significant pathogen in pediatric populations, causing a spectrum of infections.
• The rise of Methicillin-resistant Staphylococcus aureus (MRSA) poses treatment and control challenges.
• Understanding local epidemiology, including colonization and resistance patterns, is crucial for effective management.

Purpose of the Study:

• To investigate Staphylococcus aureus infections in hospitalized children.
• To determine colonization patterns and antibiotic susceptibility profiles.
• To assess the prevalence of MRSA versus Methicillin-susceptible Staphylococcus aureus (MSSA).

Main Methods:

• Prospective observational study of 103 pediatric patients (infected and controls).
• S. aureus isolates collected from clinical specimens.
• Colonization assessed via nasal, axillary, throat, and inguinal swabs.
• Antibiotic susceptibility testing performed using the MIC method.

Main Results:

• S. aureus infection confirmed in 31.06% of patients; 71.87% of infected cases showed colonization.
• Nasal and axillary regions were the most frequent colonization sites.
• MRSA accounted for 46.8% of infections; MRSA isolates exhibited higher antibiotic resistance than MSSA.
• Vancomycin, daptomycin, and teicoplanin demonstrated 100% efficacy against both MRSA and MSSA.

Conclusions:

• Colonization is a significant risk factor for S. aureus infection in pediatric patients.
• Vancomycin and teicoplanin remain effective treatments for MRSA in this cohort.
• Increasing resistance necessitates careful antibiotic selection and enhanced preventive strategies in pediatric care settings.