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1977年,甲型流感在我国出现了两个亚型病毒同时流行的新局势,一个是5、6月份广东分离的甲_3型新变种(粤防77—38),预计正由南向北扩散;另一个是6、7月份东北、天津一带流行的新甲_1型,已由北向南蔓延。陕西省因而处于两侧受犯的地位。为了了解该省健康人群对流感的免疫状况,给防治工作提供依据,我们在1977至1978年新甲_1型和甲_3型新变种流行前后,采集了健康人群血清400例测定了流感抗体。
In 1977, the influenza A virus emerged in our country with two subtypes of virus epidemic new situation at the same time, one is May and June Guangdong isolated A _3 type of new varieties (Guangdong defense 77-38), is expected from south to north Proliferation; the other is June, July northeast, Tianjin, popular new A _1 type, has spread from north to south. Shaanxi Province is therefore on both sides committed. In order to understand the state of the province’s flu on the immune status of influenza to provide the basis for prevention and treatment work, we in 1977 to 1978 before and after a new type of A _3 A _3 popular before and after the collection of serum samples from 400 healthy people measured influenza antibodies .