WHAT IS MICROHEMAGGLUTINATION TREPONEMA PALLIDUM (MHA-TP) TEST?
Syphilis is a complex, sexually transmitted disease characterized by a wide range of symptoms that imitate other diseases and is caused by the organism Treponema pallidum. In this test, the client’s serum is heat treated and mixed with T. pallidum–sensitized sheep red blood cells, incubated, and compared with a control. A positive result occurs when agglutination occurs in the test sample but not in control. This test is less sensitive than the fluorescent treponemal antibody, absorbed double stain (FTA-Abs DS) test for primary syphilis. Positive results will occur in treponemal diseases of bejel, pinta, syphilis, or yaws.