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初步判断根据初步调查掌握的流行病学和临床资料,可做如下判断. 一、1975年和1978年两次发生的病例,可能是一种传染病.因为本组病例:(1)都具有发热、头痛、头晕等传染病常见的全身中毒症状;(2)多数病例都有某些传染病的临床表现,如淋巴结肿大和皮疹等;(3)具有传染病的某些流行特征,如出现在同一地区和同一人群,发生在同一时间(均在4～5月份);(4)病前均有野外活动史,当地自然条件可能与此次发病有关;(5)氯霉素治疗对所有病人效果良好,预后相同.
Preliminary judgments Based on the epidemiological and clinical data available in the preliminary investigation, the following judgment can be made: 1. The cases that occurred twice in 1975 and 1978 may be an infectious disease because the patients in this group (1) have fever , Headache, dizziness and other infectious diseases common symptoms of systemic poisoning; (2) most cases have some clinical manifestations of infectious diseases, such as swollen lymph nodes and rash; (3) some of the epidemic features of infectious diseases, as appears in The same region and the same population, occurred at the same time (all in April to May); (4) have a history of field activities before the illness, local natural conditions may be related to the incidence; (5) chloramphenicol treatment of all patients Good effect, the same prognosis.