过去十年证明,在既无人工破伤风类毒素(以下简称破类)免疫史又未患过该病的人体内有破伤风抗毒素(以下简称破抗)。发现生活在农村中的人群和Brezil地区的家畜有保护水平的破抗(≥0.01IU/ml)。在印度,大部分人血清破抗滴度低于保护水平,城市人 Over the past decade, it has been proven that tetanus antitoxin (hereinafter referred to as tetracycline antitoxin) is present in humans who have neither an artificial tetanus toxoid (hereinafter referred to as broken class) immune history nor the disease. People living in rural areas were found to have a protective level of resistance (≥ 0.01 IU / ml) to livestock in the Brezil area. In India, the majority of people have a lower serum TBT than their urban counterparts