These tests are very good at identifying chlamydia. You are right, the ELISA test does have about a 5 % false positive rate. (1,2) In 2010, 1.3 million documented cases were reported to the CDC. In our study, 4 (8%) of the 50 swab samples were found positive with DFA, 1 (2%) was positive with cell culture, and 1 (2%) was positive with PCR. Diagnostic technology has provided several approaches to the diagnosis of C trachomatis.Outside of cells, Chlamydia can die or degrade without optimal storage and transportation. My husband of 20 years just came back positive for Chlamydia. A test that is positive almost always means the problem is there and is unlikely to be a false-positive test result. Best to go for testesting. Lower genital tract infections with Chlamydia trachomatis are predominantly asymptomatic in men and women. More than two million new cases of chlamydia, gonorrhea, ... a false positive is incredibly rare (99 percent of the time tests that come back negative are accurate). Because some of the other assays perform better on certain specimen types, it is important for … C.trachomatis DNA was investigated by commercially available PCR (Chlamydia trachomatis 330/740 IC; Sacace, Italy) method. A false-negative result can result from poor specimen However, the results are not conclusive. The NAAT tests are very accurate, even if -- like any test -- false results can occasionally occur. The Centers for Disease Control and Prevention recommended confirming positive screening tests for Chlamydia trachomatis when positive predictive values are <90%. A Chlamydia blood test is done which shows the presence of the antibodies for the chlamydia trachomatis bacteria in your blood. The positive Group B test did not interfere with the ELISA chlamydia screen. False-positive results can be due to cross-reaction with other bacteria from the genital tract. MCRNA : Chlamydia is caused by the obligate intracellular bacterium Chlamydia trachomatis and is the most prevalent sexually transmitted bacterial infection in the United States. I googled if UTI's produce false positives for Chlamydia, and in a study 47% of the UTI samples came back false positive. Chlamydia, Group B Streptococcus, Cytomegalovirus (CMV) ... the clinician should be aware that rapid tests will have both false-positive and false-negative results when compared with cultures. He was tested at the same time as seeing the doctor about a really bad UTI. I have absolutely no doubt in my mind that he is faithful, as am I. The results obtained demonstrate a nonspecific reaction that gives rise to false-positive results in the presence of culture media, including simple 2% agar, using the Abbott IMx SELECT C. trachomatis EIA test. 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