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目的比较反生物恐怖袭击医学救援中人员洗消不同方法的效果。方法以大肠杆菌和枯草杆菌为指示菌,现场测试采用有效氯浓度为500 mg/L洗消剂喷淋,作用不同时间、喷淋再用沐浴液和自来水淋浴洗消以及只用沐浴液和自来水淋浴方法的生物学效果。结果用有效氯浓度为500 mg/L的三氯异氰脲酸洗消剂喷淋洗消,作用5 min后大肠杆菌和枯草杆菌菌数平均杀灭对数值(KLV)分别为3.90(t=19.733,P<0.001)和2.93(t=20.012,P<0.001),作用时间10 min时两菌KLV为4.66(t=16.251,P<0.001)和4.55(t=20.023,P<0.001)。喷淋洗消作用5 min后再沐浴液洗浴,两菌KLV为4.25(t=12.567,P<0.001)和4.19(t=14.217,P<0.001)。只用沐浴液洗浴的两菌KLV为2.05(t=6.078,P<0.001)和1.93(t=6.593,P<0.001)。对照组不作任何处理5 min和10 min两菌KLV为0.21(t=0.833,P=0.420)和0.25(t=1.154,P=0.269)。结论降低洗消剂有效氯浓度后延长洗消液作用时间和洗消后再沐浴液洗浴能确保洗消效果,只用沐浴液和自来水淋浴有部分效果,不处理则不同时间指示菌数量无变化。
Objective To compare the effectiveness of different methods of anti-bioterrorism attacks in medical rescue personnel. Methods Escherichia coli and Bacillus subtilis as the indicator bacteria, the field test using an effective chlorine concentration of 500 mg / L decontamination spray, the role of different time, shower and then shower and tap water shower to decontaminate and only the body wash and tap water Biological effects of showering methods. The results were disinfected with trichloroisocyanuric acid decontamination agent with an effective chlorine concentration of 500 mg / L. The mean kill logarithm (KLV) of E. coli and B. subtilis strains after 5 min was 3.90 (t = 19.733, P <0.001) and 2.93 (t = 20.012, P <0.001). KLV was 4.66 (t = 16.251, P <0.001) and 4.55 (t = 20.023, P <0.001) at 10 min. After 5 minutes of spray decontamination, shower gel bath was used. The KLV of the two bacteria was 4.25 (t = 12.567, P <0.001) and 4.19 (t = 14.217, P <0.001). The KLV of two bacteria in the bath only solution was 2.05 (t = 6.078, P <0.001) and 1.93 (t = 6.593, P <0.001). In the control group, KLV was 0.21 (t = 0.833, P = 0.420) and 0.25 (t = 1.154, P = 0.269) for 5 min and 10 min respectively. Conclusions Decreasing the effective chlorine concentration of decontaminants and prolonging the action time of the decontamination solution and bathing solution after decontamination can ensure the decontamination effect. Showering with only shower gel and tap water has some effects. When not treated, the number of indicator bacteria does not change at different times .