“类毒素”用英语怎么说

给予破伤风类毒素加强剂与青霉素.A booster does of tetanus toxoid and penicillin should be administered.目的研制A+群脑膜炎球菌多糖-破伤风类毒素结合疫苗.Objective To prepare group A + C meningococcal polysaccharide conjugate vaccine.我需要 0. 5毫升破伤风类毒素.I want 0 ....