forssman antibody

[AliceAstes]

an antibody found in the blood of someone suffering from infectious mononucleosis

[Couch Potatoe]

Forssman antibody is a type of antibody that reacts with Forssman antigen, a heterophile lipid antigen present in most animal species, but not found in humans and some other animals. Its involved in some cases of infectious mononucleosis and can potentially cause false positives in diagnostic tests for various diseases.