What does "not detected" or "non reactive" mean?

A "not-detected" or "non-reactive" lab result indicates that no infection or immune response consistent with an infection has been detected based on the sample provided. Commonly used for STIs and infectious diseases, this indicates a "negative" result and should not require any follow-up or treatment.

If you have concerns or believe you have an infection despite this result, please reach out to your primary care physician for assistance.