🦷 Chapter 231 · Non–Group A or B Streptococcus

Nelson Textbook of Pediatrics 22nd Edition | Group C & G streptococci (Streptococcus dysgalactiae subsp. equisimilis), Streptococcus bovis (S. gallolyticus), viridans group streptococci (S. mitis, S. oralis, S. sanguinis), S. anginosus group, endocarditis, bacteremia, abscesses, treatment.

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📋 30 Clinical Scenarios — Non–Group A/B Streptococcus (Nelson Ch 231)

📇 High‑Yield Review Cards (Non-Group A/B Strep)

🩺 Non-Group A/B Streptococcus Clinical Scenarios

Select a scenario for diagnosis and management.

📋 Stepwise Management of Non-Group A/B Strep Infections

    📊 Important Streptococci Groups

    GroupCommon SpeciesClinical SyndromesTreatment
    Groups C/G (large colony)S. dysgalactiae subsp. equisimilisPharyngitis (similar to GAS), cellulitis, necrotizing fasciitis, bacteremia, endocarditisPenicillin (susceptible), macrolides/cephalosporins if allergy
    S. bovis (S. gallolyticus)S. gallolyticus subsp. gallolyticus, S. infantariusBacteremia, endocarditis (associated with colorectal cancer/adenoma), neonatal sepsisPenicillin, ceftriaxone, vancomycin if resistant
    Viridans groupS. mitis, S. oralis, S. sanguinis, S. mutansBacteremia (esp. neutropenic patients), endocarditis (subacute), dental cariesVancomycin (if neutropenic/penicillin-resistant), ceftriaxone
    S. anginosus group (milleri)S. anginosus, S. intermedius, S. constellatusPyogenic abscesses (brain, liver, lung), bacteremia, empyemaPenicillin + drainage, cephalosporins, vancomycin if resistant

    ⚡ Reflex Prompts — Non-Group A/B Strep Decisions

    📖 Summary: Non–Group A or B Streptococcus — Nelson Ch 231