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“ 2020 年 2 月 11 日 21 : 49 ,患者在到站的 D41 列车前被济南市疾病预防控制中心和山东省疾病预防控制中心寻获,之后的 8 天里,医务人员对其进行了及时治疗。 3 月 7 日,正式出院。” ( 1 ) 材料中提的省疾病预防控制中心所做的属于防控传染病的 措施。现在医院都使用一次性输液器、注射器,从预防传染病的角度分析,这是为了 。 ( 2 )目前你认为预防新型冠状病毒肺炎最有效的措施是什么? 。现在很多科研工作人员正在抓紧时间研制疫苗,若接种该疫苗,接种后会刺激人体内的 细胞,从而产生 。这种免疫属于 类型。 ( 3 )请你提出一条具体的何预防甲型流感的措施: 。
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