The good correlation was also observed between the tetanus antitoxin levels (standard anti-TT, horse anti-TT serum and guinea-pigs serum immunized with DTP) detected by toxin binding inhibition ELISA and TNT.

• ELISA毒素结合抑制法测得的标抗、马抗TT血清、DTP免疫的豚鼠血清的抗毒素水平与中和毒素试验所得结果之间也有很好的相关性。