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一、危险因素: 感染破伤风的危险性是普遍存在的,但其大小则受多种因素的影响,这些因素的结合决定着“感染力”。Bytchenko等对这些因素加以分析,给出定量值,并且认为一般人群的破伤风发病率(M)可由下列公式表示: M=X·F1·F2·F3·F4·F5·F6·F7 X—1个月龄以上的人口数、10万 F1～F7—7种定量的危险因素,包括: (一)社会经济因素:F1—化脓性外伤率(0.1～0.3)。F2和F3—得到预防接种和
First, the risk factors: the risk of tetanus infection is pervasive, but its size is affected by many factors, the combination of these factors determines the “infectivity.” Bytchenko et al. Analyzed these factors to give quantitative values, and concluded that the incidence of tetanus (M) in the general population is expressed by the following formula: M = X · F1 · F2 · F3 · F4 · F5 · F6 · F7 X-1 The number of people over the age of months, 100,000 F1 ~ F7-7 quantitative risk factors, including: (a) socio-economic factors: F1-suppurative trauma rate (0.1 ~ 0.3). F2 and F3-get vaccination and