论文部分内容阅读
本文报道了陕西省1979—84年137例脊髓灰质炎患者病毒分离及长安县、咸阳市500例健康带毒调查结果。1.患者调查:从137例患者分出脊髓灰质炎病毒55株,阳性率40.9%。Ⅰ、Ⅱ、Ⅲ型分别占60.0%、27.3%和12.7%。主要流行型别因年份和地区而异。如1979年Ⅲ型占6O%,但1980年Ⅰ型占94.4%,从1981年起Ⅱ型约占半数。又如西安市多年以Ⅰ型为主,而长安县以Ⅲ型为主。患者年龄4月至5岁,1岁组最多(58.2%),<1岁、2岁、3—5岁组分别占14.5%、18.2%、9.1%。有76.4%患儿未服苗,21.8%未全程免疫。2.健康带毒调查:分五个年龄组,在流行期(8月)取粪便分离病毒。
This paper reports 137 cases of poliovirus isolated from Shaanxi Province in 1979-84 and 500 cases of healthy poisoning in Chang’an County and Xianyang City. 1. Patient survey: 55 poliovirus strains were isolated from 137 patients, the positive rate was 40.9%. Type Ⅰ, Ⅱ and Ⅲ accounted for 60.0%, 27.3% and 12.7% respectively. The main epidemic types vary by year and region. For example, 1979 accounted for 6% of Ⅲ, but 94.4% of 1980, and about half of Ⅱ since 1981. Another example is that Xi’an has been dominated by Type I for many years, while Type III in Changan County is the mainstay. Patients aged from April to 5 years, 1-year-old group (58.2%), <1 year old, 2 years old, 3-5 years old group accounted for 14.5%, 18.2%, 9.1%. 76.4% of children did not take vaccine, 21.8% did not fully immunize. 2. Health with poison investigation: In five age groups, during the epidemic (August) take the feces to isolate the virus.