TABLE 2.

Tests for heterophile antibodies

Test	Manufacturer	Test principle
Paul-Bunnell-Davidsohn test	Sanofi Diagnostics Pasteur	Agglutination of horse red blood cells by presence of heterophile antibodies; absorption with Forssmann antigen and bovine red blood cell emulsion
Monosticon Dri-Dot	Organon Teknika	Latex agglutination based on erythrocyte antigen from horse and sheep; absorption with guinea pig kidney extract
Avitex-IM	Omega Diagnostics Ltd.	Latex agglutination based on reaction with bovine erythrocyte glycoprotein
Alexon Serascan infectious mononucleosis test	Alexon Biomedical Inc.	Latex agglutination based on selected erythrocytes from horse
Clearview IM	Unipath Ltd.	Direct particle-bound antigen-antibody reaction with latex-coated bovine erythrocyte glycoprotein
Cards±OS Mono	Pacific Biotech, Inc.	Color immunochromatographic assay; extracted beef stroma is immobilized on the membrane of the reaction unit (solid phase), and goat anti-human IgM antibody is linked to alkaline phosphatase