<prompt> Weil Felix reaction is based on sharing of antigens betweenSheep RBC and EBVMycoplasma and human RBCRickettsia antigens and proteus antigensNone  <response>: Weil Felix -eg for heterophile specificity -sharing between Rickettsia and Proteus Paul Bunnell - between sheep RBC and EBV Ref: Textbook of Microbiology Baveja 5th ed Pg 95 