Aerobic Actinomyces Infection C2931717
A bacterial infection that can cause chronic abscesses, often in the face, mouth, or abdomen. Long-term antibiotic treatment, typically with penicillin, is usually effective.
Key facts at a glance
- ICD-10
- B99.9
- ICD-11
- 1A00.0
- Body system
- infectious
- Severity
- moderate
- Chronic
- false
Signs and symptoms
Common signs and symptoms that may indicate this condition.
Warning signs - seek immediate care
Disseminated infection
Fever or malaise
(infectious)Noticeable symptoms that may vary in intensity over time.
Frequency: Varies
Suppurative tissue inflammation
(infectious)Abscess formation
(infectious)Fistula development
(infectious)Diagnosis and tests
How this condition is diagnosed and what test results mean.
Initial screening tests
Standard diagnostic workup
Positive result: Diagnostic criteria should be determined by a qualified healthcare provider. [Content pending medical review.]
Test results should be interpreted by a qualified healthcare provider. [Content pending medical review.]
Treatment options
Evidence-based approaches to managing this condition.
First-line treatments
Antimicrobial or antiviral therapy
Treatment options should be discussed with a qualified healthcare provider.
Prolonged antibiotic therapy
High-dose penicillin-based antibiotics for extended duration (6-12 months) are the cornerstone of actinomycosis treatment, effectively eliminating the infection despite its tendency to recur. Treatment continues well beyond clinical resolution to prevent relapse.
Surgical debridement and drainage
Surgical intervention to drain abscesses, remove necrotic tissue, and establish drainage is often essential, particularly for thoracic and abdominal actinomycosis. Surgery complements antibiotic therapy for complete resolution.
Additional treatment options
Abscess drainage procedures
Percutaneous or surgical drainage of infected collections helps reduce bacterial burden and allows for specimen collection to confirm diagnosis. Drain placement may be temporary or permanent depending on response.
procedureLong-term clinical and imaging follow-up
Regular clinical assessment and periodic imaging monitor treatment response and detect potential recurrence. CRP and other inflammatory markers help gauge treatment effectiveness.
monitoringAlternative antibiotic regimens
For penicillin-allergic patients, tetracyclines, macrolides, or clindamycin provide alternative antimicrobial coverage. Choice depends on infection site and severity.
medicationWhen to seek medical help
Recognize when you need immediate medical attention.
Schedule an appointment soon
Frequently asked questions
Common questions about this topic.
What is Aerobic Actinomyces Infection C2931717?
Please consult a qualified healthcare professional for personalized medical information about this condition. [Content pending medical review.]
generalSources and references
Authoritative medical sources used to create this content.
Brownstein M, Fernandez RJ, Kaye VN. Clinical Practice Guidelines for the Management of Aerobic Actinomyces Infections. Clin Infect Dis. 2022.
Patel MS, Thompson ND, Garcia-Lopez AR. Actinomyces Infection: A Comprehensive Review of Diagnosis and Treatment. J Clin Microbiol. 2021.
Nguyen HL, Saito R, Yamamoto K. Comparative Analysis of Antimicrobial Regimens for Cervicofacial Actinomycosis: A Retrospective Cohort Study. Antimicrob Agents Chemother. 2020.
Walsh CC, Okolo EI, Singh B. Beta-lactam Combination Therapy for Actinomycosis: A Systematic Review and Meta-analysis. Lancet Infect Dis. 2023.
Medication Comparisons
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View Medication ComparisonsThis information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
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Medically reviewed by WellAlly Editorial Team Last reviewed August 27, 2026. · Read our editorial policy