Just as what you have remembered ,the clostridium tetanal must first invade into a wound .

正像你所记得的。伤梭状芽胞杆菌必须首先侵入伤口。

Among the 7 artificial paraoxon antigens studied, we found that paraoxon-tetanus toxoid has the best immunologic effect.

在7种对氧磷人工抗原中,对氧磷-伤类毒素的免疫效果最好。