I heard that Lyme disease can mimic other diseases, like MS. Is there a blood test doctors can administer to determine if you in fact have Lyme disease? If not, is that something currently under development?
There are blood tests available to aid doctors with the diagnosis of Lyme disease. However, it is important to note that these tests are not recommended for patients who do not have signs and symptoms that suggest Lyme disease. In people who don't have such symptoms, interpresting the test results are difficult as these tests may produce false positive results (meaning the test is positive even if the individual does not have the disease). A false positive result can lead to misdiagonosis with Lyme disease when the patient actually has something else. This can delay treatment for other diseases. It's best to consult your physician if you have signs or symptoms of Lyme disease, which include a bull’s-eye rash (not every person infected with the Lyme disease bacteria gets this rash); fever; headache; achy muscles and joints; and fatigue.