A new method agar diffsive hemolysis test (ADHT)was esteblished to measure thd hemlytic titer of HEC toxin produced by Aeromonas hydrophila.

• 建立琼脂扩散溶血试验用以测定嗜水气单胞菌HEC毒素的溶血价，同时与分光光度法及微量溶试验进行比较。