Testing: Discover and Understand the Essential Facts!

  • CDC Guidelines & Recognition of "Serum" Testing Limitations

    Most Lyme and co-infection tests look for antibodies, which take weeks to appear and may be absent if testing is too early, the wrong strain is targeted, or the immune system is suppressed—leading to false negatives.

    The CDC recommends the use of serum tests called the standard ELISA which is only about 50% accurate, and Western blot whose interpretation varies widely. These Indirect tests (antibodies, immune response) are less reliable for confirming active infection. The CDC understands problems with diagnosing Lyme. They state that Lyme is diagnosed by symptoms, and treatment should start even if tests are negative when doctors strongly suspect Lyme disease.

    Many Lyme specialists recommend more sensitive serum testing options with labs like IGeneX and Vibrant Wellness, which test for multiple strains and use broader criteria to improve detection.

  • Advances in Testing: The Advantage of Direct Molecular Tests

    Use direct tests (DNA, PCR, FISH, sequencing) whenever possible! Lyme Literate MD’s often recommend direct detection methods like PCR, DNA, FISH, and antigen tests, which are more specific and can identify active infections—even early, late, or in immune-compromised patients.

    These advanced tests can readily identify active infection and are available from IGeneX, Galaxy Diagnostics, TLab, and Mosaic Diagnostic labs. Galaxy’s new BBB Direct Detect screens for Borrelia, Babesia, and Bartonella in one test. If your initial CDC serum ELISA or Western Blot are negative, these testing options are available.

  • Challenging False Negatives: Know Your Rights!

    The science of testing for Lyme and associated disease is far behind the practice. Often, it is the patient that must make the provider aware of the limitations of CDC guidelines on the use of serum testing with ELISA and Western Blot.

    In fact, the risk of delayed diagnosis and treatment of Lyme and coinfections is such that several U.S. states protect patients’ rights to full disclosure about the limitations of Lyme disease testing. Virginia, Maryland, Rhode Island, and Maine require healthcare providers to inform patients—often in writing—that current Lyme tests can produce false negatives, especially early in infection or when the immune response is weak, and that a negative result does not rule out disease. These laws ensure patients receive clear information so they can make informed decisions, seek follow-up care if symptoms persist, and avoid the harm of delayed or missed diagnoses.

Advanced Diagnostic Testing Resources