为了解大连市健康人群破伤风的免疫状况,预测免疫工作质量,我们用ＰＨＡ试验对大连市城乡不同年龄组健康人群进行了破伤风免疫水平调查。对象与方法　(1)调查对象:大连市城乡2～4岁,6～8岁,13～15岁,25～39岁健康人群。(2)方法:①被检血清56℃30分灭活,与等量羊血球吸收。4℃过 To understand the immune status of tetanus among healthy people in Dalian and to predict the quality of immunization, we used the PHA test to investigate the immune status of tetanus among healthy people in different age groups in urban and rural areas of Dalian. Subjects and methods (1) Survey participants: Dalian City and countryside 2 to 4 years old, 6 to 8 years old, 13 to 15 years old, 25 to 39 years old healthy people. (2) Methods: 1 Inactivated serum was inactivated at 56°C for 30 minutes and absorbed with the same amount of sheep blood cells. 4°C