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一、初步分析和调查方案(一)初步分析初知情况较复杂,如前述。假如是多种疾病存在,不能解释共同症状和嗽咳、咯血和 X 线所见,以及病程较长,治疗效果不好等,更不能解释短期内发生10余名病人。如为感冒,发生在夏季,病人少,局限在合同工回乡参加劳动者身上(后述),而且症状和病程也不像;如为急性胃肠炎,多数人却有嗽咳、咯血等呼吸道症状,而肠道症状反而轻,仅为个别病人,且看不到互相传播的特点;如为肺炎或肺结核,为什么短期内发生10余人,症状和病程也不像。应考虑的是:根据病人临床上的主要症状、当时的季节和发病对象是回农村抢收作物的人员来分析,考虑为钩端螺旋体病流行的可能性最大。临床表现为多种型以肺出血型为主。
First, the preliminary analysis and investigation programs (a) a preliminary analysis of the situation of the first informed more complicated, as mentioned above. If there is a variety of diseases, can not explain the common symptoms and cough, hemoptysis and X-ray findings, and longer duration, the treatment effect is not good, but can not explain the short-term occurrence of more than 10 patients. If it is a cold, it occurs in the summer and there are few patients, so it is limited to the contracted workers who return to their hometowers (described later), and their symptoms and course of disease are not the same. For acute gastroenteritis, most people have cough and hemoptysis, Symptoms, but the intestinal symptoms but light, only for individual patients, and do not see the characteristics of mutual transmission; such as pneumonia or tuberculosis, why more than 10 people in the short term, symptoms and duration are not. Should be considered is: According to the patient’s clinical main symptoms, the season and the incidence of the object is to return to rural areas to seize the crop of personnel to analyze, consider the possibility of leptospirosis is the most likely. A variety of clinical manifestations of pulmonary hemorrhage based.