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1999年4月中旬至6月下旬,本市某小学发生一起流行性腮腺炎爆发,对该爆发疫点的调查结果报道如下。fat情概况1.1一般情况:该小学6个年级9个班级共有学生4对名,教职122名。4月中旬至6月下旬在学生中共出现腮腺炎病例191例,发病率为45.37%,教职工中未发现病例。1.2流行
From mid-April to late June 1999, an outbreak of mumps was reported in a primary school in the city. The findings of the outbreak were reported below. fat situation 1.1 general situation: the primary 6 grade 9 classes a total of 4 pairs of students, 122 faculty. In mid-April to late June, 191 cases of mumps were reported among students, with a morbidity of 45.37%. No cases were found among staff. 1.2 popular