世卫组织:2021无法实现群体免疫
文章来源:未知 文章作者:enread 发布时间:2021-01-12 08:19 字体: [ ]  进入论坛
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World Health Organization (WHO) chief scientist Soumya Swaminathan said Monday that herd1 immunity2 to coronavirus would not be achieved in 2021, despite the growing availability of vaccines4.
 
世界卫生组织的首席科学家苏米娅·斯瓦米纳坦周一表示,即使疫苗产量不断增加,也不可能在2021年实现对新冠病毒的群体免疫。
 
Mitigating5 factors to herd immunity include limited access to vaccines in developing countries, skepticism over vaccination6, and the potential for virus mutations, according to health experts.
 
A growing number of countries around the world, including the United States, the United Kingdom, Singapore, Germany and other European Union countries, are in the first stages of mass-vaccination campaigns.
 
Herd immunity occurs when enough people in a population have immunity to an infection so that it prevents the disease from spreading.
 
"We are not going to achieve any levels of population immunity or herd immunity in 2021," Swaminathan told a briefing, while emphasizing that measures like physical distancing, hand washing and mask wearing continue to be necessary in containing COVID's spread for the rest of the year.
 
However, Swaminathan commended the "incredible progress" made by vaccine3 researchers to develop several safe and effective vaccines at unprecedented7 speed. Countries are currently administering vaccines developed by BioNTech-Pfizer, Oxford8 University/AstraZeneca and Moderna.
 
The WHO top scientist called on people to be "a little patient," pointing out that the rollout of vaccines "does take time," as the scale of dose production is in the billions.
 
"The vaccines are going to come," she said. "They are going to go to all countries ... but meanwhile we mustn't forget that there are measures that work," she added, referring to hygiene9 and social distancing.


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1 herd Pd8zb     
n.兽群,牧群;vt.使集中,把…赶在一起
参考例句:
  • She drove the herd of cattle through the wilderness.她赶着牛群穿过荒野。
  • He had no opinions of his own but simply follow the herd.他从无主见,只是人云亦云。
2 immunity dygyQ     
n.优惠;免除;豁免,豁免权
参考例句:
  • The law gives public schools immunity from taxation.法律免除公立学校的纳税义务。
  • He claims diplomatic immunity to avoid being arrested.他要求外交豁免以便避免被捕。
3 vaccine Ki1wv     
n.牛痘苗,疫苗;adj.牛痘的,疫苗的
参考例句:
  • The polio vaccine has saved millions of lives.脊髓灰质炎疫苗挽救了数以百万计的生命。
  • She takes a vaccine against influenza every fall.她每年秋季接种流感疫苗。
4 vaccines c9bb57973a82c1e95c7cd0f4988a1ded     
疫苗,痘苗( vaccine的名词复数 )
参考例句:
  • His team are at the forefront of scientific research into vaccines. 他的小组处于疫苗科研的最前沿。
  • The vaccines were kept cool in refrigerators. 疫苗放在冰箱中冷藏。
5 mitigating 465c18cfa2b0e25daca50035121a4217     
v.减轻,缓和( mitigate的现在分词 )
参考例句:
  • Are there any mitigating circumstances in this case ? 本案中是否有任何情况可以减轻被告的罪行? 来自辞典例句
  • A sentencing judge is required to consider any mitigating circumstances befor imposing the death penalty. 在处死刑之前,要求量刑法官必须考虑是否有任何减轻罪行之情节。 来自口语例句
6 vaccination bKGzM     
n.接种疫苗,种痘
参考例句:
  • Vaccination is a preventive against smallpox.种痘是预防天花的方法。
  • Doctors suggest getting a tetanus vaccination every ten years.医生建议每十年注射一次破伤风疫苗。
7 unprecedented 7gSyJ     
adj.无前例的,新奇的
参考例句:
  • The air crash caused an unprecedented number of deaths.这次空难的死亡人数是空前的。
  • A flood of this sort is really unprecedented.这样大的洪水真是十年九不遇。
8 Oxford Wmmz0a     
n.牛津(英国城市)
参考例句:
  • At present he has become a Professor of Chemistry at Oxford.他现在已是牛津大学的化学教授了。
  • This is where the road to Oxford joins the road to London.这是去牛津的路与去伦敦的路的汇合处。
9 hygiene Kchzr     
n.健康法,卫生学 (a.hygienic)
参考例句:
  • Their course of study includes elementary hygiene and medical theory.他们的课程包括基础卫生学和医疗知识。
  • He's going to give us a lecture on public hygiene.他要给我们作关于公共卫生方面的报告。
TAG标签: work vaccines immunity
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