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1977年初至1979年12月,在某地山区施工的甲、乙两个单位所属的7个部队中,发生了流行性出血热(以下简称出血热)的流行。甲单位所属的5个部队发生典型病人169例,乙单位所属的两个部队中发生41例,共发生210例,严重地影响了部队指战员的身体健康。为了探究出血热在驻山区部队中的流行特征,指导预防措施的正确实施,3年来,我们曾反复地作了流行病学调查,现将初步结果报告如下。流行病学调查一、自然景观:甲、乙两单位驻在某盆地边缘的山区,当地气候温和,历年平均气温15.2℃,雨量充沛,历年平均降雨量为
From early 1977 to December 1979, outbreaks of epidemic hemorrhagic fever (hereinafter referred to as haemorrhagic fever) occurred among the seven troops belonging to both A and B units under construction in a mountainous area. A unit of the five units belonging to 169 cases of typical patients, Unit B belongs to the two forces occurred in 41 cases, a total of 210 cases, seriously affecting the health of officers and men of the unit. In order to explore the epidemiological features of haemorrhagic fever in troops in the mountainous areas and to guide the proper implementation of preventive measures, we conducted repeated epidemiological investigations over the past three years. The preliminary results are reported below. Epidemiological survey First, the natural landscape: A, B two units located in the edge of a basin of mountainous, the local climate is mild, the annual average temperature of 15.2 ℃, rainfall is abundant, the average annual rainfall is