Written Exam


The following training requirements must be completed before a candidate may sit for the Written Exam for subspecialty certification in Infectious Disease:

  • Complete two years of training in an AOA-recognized fellowship program in Infectious Disease. You must have completed the required training by Aug. 15 of the year when you plan to sit the exam.
  • Adhere to the AOA Code of Ethics.


Once training requirements for eligibility are met, candidates must submit the following:

  • A completed application.
  • Required fees.
  • Proof of an active medical license.
  • Initial applicants and applicants who have not completed their training must submit a Program Director report by July 18 verifying clinical competence and the completion date of an AOA-recognized fellowship training program.
  • If you completed your training in an ACGME fellowship program, submit a letter from the AOA stating that the ACGME fellowship training has been AOA-recognized.
  • If you’ve received a letter from the AOA stating that your subspecialty training program is complete, enclose a copy with your application.

Exam Fees

An exam fee of $800 must be submitted with your completed application. No application will be considered complete until all fees have been paid. Exam applications submitted after June 16 will incur a $240 non-refundable late fee. No applications will be accepted after July 16. All cancellations must be made in writing. No exam fees are refunded unless the candidate withdraws from the examination process, which will result in a loss of board eligibility. Refunds will be administered as follows:

  • On or before July 16: 50% refund
  • After July 16: No refund

Exam Dates and Deadlines

The Infectious Disease Written Exam is offered in August. The application period opens Feb. 16, 2024, and closes end of day July 16, 2024.

Exam Content Outline

The Infectious Disease Written Exam tests the knowledge and understanding of basic science and clinical knowledge, skills and principles critical to the practice of Infectious Disease. The seven-hour exam consists of 300 multiple choice questions:

Subspecialty Certification
  1. 1. Central nervous system infections
  2. 2. Respiratory tract infections
  3. 3. Cardiovascular infections
  4. 4. Eye infections
  5. 5. GI-related infections
  6. 6. HIV disease
  7. 7. Sexually transmitted infections
  8. 8. Renal and urinary tract infections
  9. 9. Infections of bone and joint
  10. 10. Skin and soft tissue infections
  11. 11. Sepsis and bacteremia
  12. 12. Fever of unknown origin
  13. 13. Immunodeficiency syndromes (non-HIV)
  14. 14. Nosocomial/hospital-acquired infections
  15. 15. Infection prevention and control
  16. 16. Use of antimicrobials
  17. 17. Organism-specific infections
  18. 18. Travel-related infections
  19. 19. Lab diagnosis of infectious diseases
  • 3%
  • 2%
  • 3%
  • 2%
  • 3%
  • 15%
  • 5%
  • 2%
  • 2%
  • 6%
  • 3%
  • 3%
  • 3%
  • 1%
  • 8%
  • 10%
  • 20%
  • 5%
  • 5%

Exam Scoring

Scoring Criteria

AOA reports candidates’ certification results using standardized scaled scores. Scaled scores are more valid and reliable compared to raw scores and make scores comparable across different forms of the exam. The AOA reports scores on a 200 to 800-point scale with a scaled score of 500 or higher required to pass.

  • A scaled score of 500 represents the minimum level of knowledge and skill necessary to pass the exam as established by AOA Certifying Boards.
  • The highest possible scaled score is 800.
  • The lowest possible scaled score is 200.
  • Overall scores are based on the total number of items answered correctly, regardless of content area.

Results by Content Area

  • When possible, a breakdown of exam scores by content area is provided to help you identify your areas of strength and areas that may need more development.
  • The number of items for each content area indicates the relative amount of test questions on the exam for that content area.
  • Content area scores are not weighted to calculate your overall score; each content area is scored separately after the overall analysis is complete.