12/24/2023 0 Comments Western blot results negative resultsPCR testing may be used to identify a current (active) infection if you have symptoms of Lyme disease that have not gotten better with antibiotic treatment. Polymerase chain reaction (PCR) testing detects the genetic material ( DNA) of the Lyme disease bacteria. The Western blot test should be done for all people who've had a positive (or borderline positive) ELISA test. It is most often done to detect a chronic Lyme disease infection.Īntibody testing should be done in a two-step process, using the ELISA followed by the Western blot test. This test also identifies Lyme disease antibodies and can confirm the results of an ELISA test. This is a rapid test to identify Lyme disease antibodies. Enzyme-linked immunosorbent assay (ELISA).There are two types of antibody tests to detect Lyme disease. Finding antibodies to the Lyme disease bacteria does not tell whether you were infected recently or sometime in the past. Once formed, antibodies usually stay in your system for many years, even after successful treatment of the disease. It may take up to 2 months after becoming infected before antibodies can be detected in a blood test. Antibody testsĪntibody tests are the most commonly used tests to help identify Lyme disease. Other tests may be done in certain situations. Antibody tests can sometimes be used to help identify Lyme disease. If you and your doctor think you have Lyme disease, your doctor will do a careful medical history and physical exam. Lyme disease can be hard to diagnose because its symptoms are similar to those of many other illnesses. Lyme disease bacteria are spread by certain kinds of ticks. A Lyme disease test detects antibodies to the Lyme disease bacteria in the blood.
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