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目的了解口服痢疾双价活疫苗预防痢疾的效果。方法通过对3起痢疾暴发疫情流行病学调查 ,运用统计学方法 ,评价疫苗近期流行病学效果。结果3起痢疾疫情中 ,疫苗对福氏2a和福氏4a型痢疾保护率分别为100%和48.07 % ,对宋内氏痢疾未见保护效果。结论口服痢疾双价活疫苗对预防痢疾的效果有待进一步扩大样本量观察。
Objective To understand the effect of live dysentery bivalent live vaccine in preventing dysentery. Methods Epidemiological survey of three outbreaks of dysentery was conducted, and the statistical methods were used to evaluate the recent epidemiological effects of the vaccine. Results In the three outbreaks of dysentery, the protective rates of the vaccine to diarrhea of Form 2 a and Form 4 a were 100% and 48.07%, respectively. No protective effect was found on the disease. Conclusion The efficacy of oral dysentery bivalent live vaccine in preventing dysentery needs to be further expanded in sample size.