Anaerobic infections in children
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Updated: Sep 28, 2026

Subcutaneous Infection of Methicillin Resistant Staphylococcus Aureus (MRSA)
Published on: February 9, 2011
1Department of Pediatrics, Georgetown University School of Medicine, Washington, DC, USA. ib6@georgetown.edu
Insights
Anaerobic bacteria cause difficult-to-diagnose childhood infections. Proper specimen handling and antimicrobial therapy covering both anaerobic and aerobic pathogens are crucial for successful treatment.
Area of Science:
- Pediatric Infectious Diseases
- Microbiology
- Clinical Bacteriology
Background:
- Anaerobic bacteria are a significant cause of endogenous infections in children.
- These fastidious organisms are often overlooked due to challenges in isolation and identification.
- Anaerobic infections can manifest in various body sites and are common in neonates.
Purpose of the Study:
- To highlight the prevalence and clinical significance of anaerobic bacterial infections in pediatric patients.
- To emphasize the diagnostic challenges and therapeutic considerations for anaerobic infections.
- To underscore the importance of appropriate specimen management and antimicrobial selection.
Main Methods:
- Review of clinical cases and microbiological data pertaining to anaerobic infections in children.
- Discussion of diagnostic techniques, including appropriate specimen collection, transport, and cultivation methods.
- Analysis of antimicrobial resistance patterns and treatment strategies for anaerobic pathogens.
Main Results:
- Anaerobic bacteria were implicated in diverse pediatric infections, including CNS, abdominal, and soft tissue infections.
- Neonatal infections such as cellulitis, pneumonia, bacteremia, and infant botulism were associated with anaerobic colonization.
- Therapeutic failures were noted in cases with inadequate diagnostic approaches or antimicrobial therapy.
Conclusions:
- Effective management of pediatric anaerobic infections necessitates specialized laboratory techniques for isolation and identification.
- Antimicrobial therapy requires careful selection to ensure coverage of both anaerobic and aerobic polymicrobial flora.
- Prompt and accurate diagnosis, coupled with appropriate treatment, is essential to prevent clinical complications.
Abstract:
Anaerobic bacteria can cause a variety of endogenous infections in children. Because of their fastidious nature, they are difficult to isolate from infectious sites, and are often overlooked. Anaerobic infections can occur in all body sites, including the central nervous system, oral cavity, head and neck, chest, abdomen, pelvis, skin, and soft tissues. They colonize the newborn after delivery and have been recovered from several types of neonatal infections. These include cellulitis of the site of fetal monitoring, neonatal aspiration pneumonia, bacteremia, conjunctivitis, omphalitis, and infant botulism. The lack of adequate therapy may lead to clinical failures. Their isolation requires appropriate methods of collection, transportation and cultivation of specimens. Treatment is complicated by their slow growth, their polymicrobial nature and their growing resistance to antimicrobials. Antimicrobial therapy is often the only form of therapy required, whereas in others it is an important adjunct to a surgical approach. Because anaerobes are generally recovered mixed with aerobic organisms, the choice of antimicrobial agents should provide coverage of both types of pathogens.
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