Keywords: مک الایزا; ELISA; enzyme-linked immunosorbent assay; HA; haemagglutination; HIT; haemagglutination inhibition test; MAC-ELISA; IgM antibody capture ELISA; NLC; normal cell antigen; PRNT; plaque reduction neutralisation test; TMB; 3,3â²,5,5â²-tetramethylbenzidine;