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这种麻疹疫苗由Lederle实验室用76代鸡绒毛尿囊膜毒种在鸡胚细胞培养中制备,称为CAM疫苗,以Attenuvax疫苗为对照,用双盲法作临床观察。接种对象为14个月以上的未接种过麻疹疫苗的易感儿,接种后30天内由家长在家里观察症状,第6～18天每天下午测肛温,儿童有发热时随时测体温,有明显发热(≥38.3℃)或不适时,要求家长与医务人员联系。试验前和接种后4～6周采
The measles vaccine was prepared in a chicken embryo cell culture using 76 generations of chick chick allantoic membrane vaccine in Lederle Laboratories as a CAM vaccine with the Attenuvax vaccine as a control and double-blinded clinical observations. Vaccination for more than 14 months without measles vaccine susceptible children, 30 days after inoculation by the parents at home to observe the symptoms, the first 6 to 18 days every afternoon to measure rectal temperature, fever in children at any time when the measured body temperature, significant Fever (≥38.3 ℃) or inappropriate, require parents and medical personnel. Before the test and 4 to 6 weeks after inoculation