The mononuclear spot<unk>  or monospot<unk> , a form of the<unk> , is a rapid<unk>  for infectious mononucleosis due to Epstein–Barr virus (EBV). It is an improvement on the Paul-Bunnell<unk> . The<unk>  is specific for<unk>  antibodies produced by the human immune system in response to EBV infection.  Commercially available<unk>  kits are 70-92% sensitive and 96-100% specific, with a lower sensitivity in the first two weeks after clinical symptoms begin. It will generally not be positive during the 4-6 week incubation period before the onset of symptoms.  It will also not generally be positive after active infection has subsided, even though the virus persists in the same cells in the body for the rest of the carrier's life.
Heterophile antibody test
Mantoux test
Direct fluorescent antibody
Nucleic acid test
RAST test
Fluorescent treponemal antibody absorbtion 
Hemagglutination assay
Plaque reduction neutralization test