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Expiration Date

31 Dec 2023

Last Reviewed

1 Jan 2021

Estimated Time To Finish

75 Minutes

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Activity Description

Actinomyces are gram-positive filamentous non-acid fast anaerobic to microaerophilic bacteria that typically colonize the human mouth, urogenital tract, and gastrointestinal tract but can cause an infection known as actinomycosis. The infection is usually granulomatous, suppurative, and may involve multiple sulfur-containing abscesses that form sinus tracts. Actinomycosis is generally not diagnosed until the chronic phase. In otherwise healthy individuals, the infection is generally treatable with a prolonged course of intravenous antibiotics; the outcome is more nebulous for immunocompromised individuals. This activity reviews the evaluation and treatment of actinomycosis and highlights the role of the interprofessional team in caring for patients with this condition.

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Target Audience

This activity has been designed to meet the educational needs of physicians.

Learning Objectives

At the conclusion of this activity, the learner will be better able to:

  • Explain why actinomycosis is generally not diagnosed until it reaches the chronic stage.
  • Identify the most common sites for actinomycosis infection and the expected signs and symptoms associated with each site.
  • Describe the treatment considerations for actinomycosis.
  • Explain why a well-integrated, interprofessional team approach is needed to provide optimal care to patients with actinomycosis.

Author(s) / Contributors Disclosure of Conflicts of Interest

Each author, editor, faculty and planning committee member have completed a disclosure form indicating that neither they nor their spouse/partner has a financial interest/arrangement or affiliation that could be perceived as a real or apparent conflict of interest related to the content of this activity.

COMMERCIAL SUPPORT: This activity has received NO commercial support.

Continuing Education Accreditation Information

This activity has been planned and implemented in accordance with the accreditation requirements and policies of the Accreditation Council for Continuing Medical Education (ACCME) through the joint providership of the Quillen College of Medicine, East Tennessee State University, and StatPearls, LLC. The Quillen College of Medicine, East Tennessee State University is accredited by the ACCME to provide continuing medical education for physicians.

Quillen College of Medicine, East Tennessee State University designates this activity for a maximum of 1.25 AMA PRA Category 1 CreditsTM. Physicians should only claim credit commensurate with the extent of their participation in the activity.

This activity is reported to the following Maintenance of Certification (MOC) boards:
American Board of Internal Medicine
  • Adolescent Medicine
  • Internal Medicine
  • Infectious Disease
American Board of Pathology
  • Clinical Pathology
  • Infectious Diseases/Medical Microbiology
American Board of Pediatrics
  • Adolescent Medicine
  • General Pediatrics
  • Pediatric Infectious Diseases

Cancellation Policy: Cancellations must be received in writing and a money-back guarantee is provided if not completely satisfied.

  • StatPearls and ETSU reserve the right to cancel any course due to unforeseen circumstances. StatPearls and ETSU will not be responsible for other expenses incurred by the participant in the unlikely event that the program is canceled.

Equal Opportunity

  • StatPearls and ETSU are Equal Opportunity / Affirmative Action / Equal Access Institutions. 

Medium or Media Used:

  • Computer Requirements:  Internet Access
  • E-mail Address

Instructions for Credit

  1. Register for the activity and create a StatPearls login.     
  2. Review the required accreditation information:  Target audience, learning objectives, and disclosure information.
  3. Complete the entire self-study activity.
  4. Complete the post-test assessments.
  5. Successfully pass the post-test with a minimum score of 100%.
  6. Complete the evaluation survey. 
  7. Obtain a certificate.

StatPearls and ETSU adhere to ACCME Standards regarding commercial support of continuing medical education. It is the policy of StatPearls and ETSU that the faculty and planning committee disclose real or apparent conflicts of interest relating to the topics of this educational activity, that relevant conflict(s) of interest are resolved, and also that authors and editors will disclose any unlabeled/unapproved use of drug(s) or device(s) during their presentation. Detailed disclosure will be made prior to starting the activity.

The information provided at this CME/CE activity is for continuing education purposes only and is not meant to substitute for the independent medical/clinical judgment of a healthcare provider relative to diagnostic and treatment options of a specific patient’s medical condition.

  • If you need help with the system or have a question about content, please contact, or call 727-289-9796.
  • If you have a question about the ETSU CME providership, please contact


Media Usage Rights

The contributors and editors of StatPearls have attested that all associated media (images and video) have been legally cleared for use with this activity.  All copyrights are reserved.

  • Name: 'actinomycosis.jpg' Attribution: Image donated by Sbhimji
  • Name: '16153.png' Attribution: Contributed by the CDC/ Dr. Hardin
  • Name: '16154.png' Attribution: Contributed by the CDC/ Dr. Robert Fass; Ohio State Dept. of Medicine
  • Name: '16157.png' Attribution: Contributed by the CDC/ Dr. Lucille K. Georg
  • Name: '18687.png' Attribution: Contributed by the CDC/ Dr. Richard L. Levin, Greater Southeast Community Hospital, Washington, D.C.
  • Name: 'PHIL_2856.png' Attribution: Contributed by the CDC/ Dr. Thomas F. Sellers; Emory University
  • Name: 'PHIL_4333.png' Attribution: Contributed from the CDC


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