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世卫组织:印度发现的新冠变异株传染性又增强

2021-05-14 生物探索 生物探索

印度发现的新冠变异毒株至少已传播至全球约20个国家或地区,并且传染性得到进一步增强

当前,印度第二波疫情急剧恶化,单日新增确诊连续19天超30万。更令人担忧的是,印度发现的新冠变异毒株至少已传播至全球约20个国家或地区,并且传染性得到进一步增强,世界卫生组织已将该变异株列为全球范围内“需关注的变异株”。

多国发现

印度报告的变异病毒

受到印度疫情影响,地处“世界之巅”的尼泊尔疫情也告急。尼泊尔卫生与人口部10日晚间公布数据显示,过去24小时,尼泊尔全国新增9271例新冠病毒感染病例和139例死亡病例。

有医学专家分析称,除公共场所拥挤、民众忽视防疫措施等因素,尼泊尔疫情卷土重来,与印度密切相关。部分尼泊尔人从印度返国,携带的双重变种病毒传入社区,导致病例急增。

尼泊尔加德满都的一家火葬场,一名女子在因新冠去世的家人尸体旁哀悼

除尼泊尔之外,5月11日,菲律宾卫生部证实,首先在印度被发现的变异病毒株B.1.617已经在菲律宾出现,目前菲律宾共计有2例感染病例。

泰国新冠疫情管理中心10日说,泰国境内首次发现印度最早报告的变异新冠病毒感染病例。为避免这种变异病毒进一步扩散,泰国政府将扩大入境禁令,除印度外,自即日起暂停向从巴基斯坦、尼泊尔和孟加拉国入境的非泰籍人士发放入境许可文件。

斯里兰卡免疫学家吉万达拉8日发表报告说,该国发现了传染性极强的印度最早报告的变异病毒B.1.617。负责基础医疗卫生服务、流行病与新冠防控的国务部长费尔南多普莱9日对当地媒体表示,变异病毒导致斯里兰卡确诊病例数大幅增长,未来两三周将是关键时期,如果人们遵守防疫规定,疫情形势或可有所缓和。

不仅仅是国外,近日我国多地也发现了自印度、尼泊尔输入的确诊病例。5月10日,深圳新增2例印度籍境外输入无症状感染病例,重庆新增1例尼泊尔输入新冠确诊病例,5月6日当天,广州市新增2例尼泊尔境外输入确诊病例。

传染性增强

突变毒株成“需关注的变异株”

当地时间5月10日,世卫组织卫生紧急项目技术主管玛丽亚·范·科霍夫在发布会上表示,现有信息显示,印度发现的新冠病毒变异株的传染性增强,一些病例出现中和反应降低,世卫组织将该变异株列为全球范围内“需关注的变异株”。

现在还没有关于该变异株对诊断、治疗和疫苗影响的数据,未来还会有变异新冠病毒出现,必须尽一切努力控制病毒传播,用现有工具减少重症患者和死亡病例。

数据显示,截至5月10日,印度新增新冠确诊病例连续19天单日超过30万例,累计确诊22662575例,累计死亡246116例。

中国等国有效控制新冠病毒

人们可以正常生活

世卫组织卫生紧急项目负责人迈克尔·瑞安表示,武汉和中国大部分地区体会到了有效控制住病毒所带来的好处。

迈克尔·瑞安,图源:央视新闻

武汉在疫情初期承受了巨大的痛苦,牺牲了很多,随后控制住疫情并保持了这种状态。当发病率非常低时,人们在户外不戴口罩也并不奇怪,澳大利亚和新西兰等国也可以看到同样的景象。

瑞安指出,这些国家采取了全面应对措施,当发病率降至非常低的水平时,经济和社会生活就有了更多选择。中国等国还维持着高度警惕,当发现疫情时可以非常迅速地应对,同时让人们可以正常生活,这也是很多国家现在想要达到的状态。

此外,世卫组织助理总干事玛丽安热拉·西芒表示,世卫组织评估了中国国药新冠疫苗的临床数据,认可了该疫苗的有效性和安全性。世卫组织于一月和二月对疫苗生产进行了实地考察,生产环节规范。玛丽安热拉·西芒指出,目前全球广泛使用国药疫苗,该疫苗安全有效。

世卫组织免疫、疫苗和生物制剂主管凯特·奥布莱恩表示,国药疫苗对预防重症和死亡非常有效,该疫苗需要接种两剂。

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    2021-11-29 xzw113
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    2021-05-14 ms7000000414344418

    恐怖

    0

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    2021-05-13 公卫新人

    新冠肺炎,疫情何时才能消失

    0

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