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1983年6～9月我省沧州地区交河县暴发流行脊髓灰质炎,现将结果报告如下:疫情发生于该县东辛店乡的5个村,计15例,发病率0.48%。河北于村发病10例,发病率1.8%,其中9例为同校学生。其他村散在发生,都有直接或间接的接触史,说明接触传播的特点。6月6日～9月28日为流行期,历时114天,7月下旬为高峰。发病年龄3.5～12.7岁,平均8.1岁。按卡片记载服苗史不详和未服苗者各1例,其余13例多在4～5年前服苗。在疫村调查15岁以内儿童304名,全程服苗率为86.5%。1979年前无冷藏设备,多在室温保存,可影响减毒活疫苗的滴度,但未进行过疫苗滴度测定。15例起病均急骤,9例有明显前驱症状,如发热、无力、头痛、咽痛、恶心、呕吐、腹污、腹痛
From June to September 1983, epidemic of epidemic polio in Jiaohe County, Cangzhou Prefecture of our province was reported. The results are reported as follows: The epidemic occurred in 5 villages in Dongxindian Township of the county, accounting for 15 cases, with a incidence rate of 0.48%. Hebei village incidence of 10 cases, the incidence of 1.8%, of which 9 were students. Other villages are scattered and have direct or indirect contact history, indicating the characteristics of contact and communication. June 6 ~ September 28 for the popular period, which lasted 114 days, the peak in late July. Age 3.5 to 12.7 years old, with an average of 8.1 years old. According to the card records the history of clothing is unknown and did not take the vaccine in 1 case, the remaining 13 cases more in 4 to 5 years before taking the vaccine. In the village survey of 304 children within 15 years of age, full dress rate was 86.5%. No refrigeration equipment before 1979, and more at room temperature, can affect the live attenuated attenuated vaccine, but no vaccine titer determination. The onset of 15 cases were abrupt, 9 cases had obvious prodromal symptoms, such as fever, weakness, headache, sore throat, nausea, vomiting, abdominal pain, abdominal pain