The test is a qualitative, point-of-care diagnostic tool that detects Wuchereria bancrofti in human blood serum or plasma. There are mainly three laboratory methods used for diagnosing active infections namely demonstration of microfilariae (mf) in the night blood specimens, detection of circulating filarial antigens (CFA) released in the body by adult worms and detection of filarial DNA in human blood by polymerase chain reaction.
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