Sarateanu D E, Ehrengut W
Immun Infekt. 1976 Jun;4(3):141-3.
During a serological surveillance programme between October 1974 and September 1975 in Hamburg, 1624 sera from all age groups of the population were examined for the presence of coronavirus antibodies (OC 43 agent). 61,51% of the sera showed HI-titres between 1:8 and 1:128. The geometric mean antiboty titre (GMT) for the whole group was 1:12,2. The serological seasonal pattern suggests that coronaviruses are circulating the whole year in the urban population with a prevalence in the cold and a decrease in the warm season (June). The highest incidence of seropositive reactions (82,9%) was found in the 15-24 years old individuals (GMT 1:13,8). These data indicate an increased spread of coronaviruses in this segment of the population and a marked susceptibility of the group.
在1974年10月至1975年9月于汉堡开展的一项血清学监测项目中，对来自各年龄组人群的1624份血清进行了冠状病毒抗体（OC 43毒株）检测。61.51%的血清血凝抑制（HI）效价在1:8至1:128之间。整个组的几何平均抗体效价（GMT）为1:12.2。血清学季节性模式表明，冠状病毒在城市人群中全年传播，在寒冷季节流行，在温暖季节（6月）有所减少。血清学阳性反应发生率最高（82.9%）的是15至24岁个体（GMT 1:13.8）。这些数据表明冠状病毒在该人群组中传播加剧，且该组人群易感性明显。
