手机APP下载

您现在的位置: 首页 > 在线广播 > VOA慢速英语 > VOA慢速-时事新闻 > 正文

VOA慢速英语(翻译+字幕+讲解):FDA:强生单剂量疫苗安全有效

来源:可可英语 编辑:clover   可可英语APP下载 |  可可官方微信:ikekenet
  


扫描二维码可进行跟读训练
  下载MP3到电脑  [F8键暂停/播放]   批量下载MP3到手机
iYLG1pO.pwr*4sJi*

2MqqCST8cG[~i(

FDA Says J&J One-shot Vaccine Safe, Effective

(|b24m7+@I(!.F#tG

The United States Food and Drug Administration says Johnson & Johnson's one-shot vaccine is safe and protects against severe COVID-19 disease.

U*(tH=F4&mmV=a

The agency released documents Wednesday in preparation for a meeting Friday to decide if it will approve the vaccine for emergency use.

7cUsiOb~D+~,W0F9%

The Johnson & Johnson, or J&J, large Phase 3 trials involved almost 44,000 volunteers. The vaccine appeared to work best in the United States with an efficacy rate of 72 percent. In Brazil the rate was 68 percent. And in South Africa, where a fast-spreading coronavirus variant was first identified last October, the rate was 64 percent effective. That is up from the 57 percent reported earlier by the drug maker.--

;e[+T-~|hB]r0

The FDA also examined the vaccine in connection with coronavirus variants, especially those found in Brazil and South Africa. The independent scientists found that 28 days after vaccination the efficacy rate increases to as high as 87 percent.

D%rWyCD]vj[9twheZesQ

Volunteers in the trial reported only minor side effects from the shots such as pain, fever and headache. By early February, there was no COVID-related deaths in the group of volunteers receiving the vaccine. There were seven deaths in the study group that received a placebo, a shot filled with an inactive substance.

3L(,@q[az(O

The J&J vaccine can be stored at normal refrigeration temperature easing distribution operations. The two-shot vaccines from Pfizer-BioNTech and Moderna, already approved for emergency use, require extreme cold storage.

fqSS%J54Adw&

J&J told Congress at Tuesday's hearing that it expected to provide 20 million shots by the end of March and 100 million by summer. Worldwide, the company said it aims to produce around one billion vaccines by the end of the year.

LMJ+jS=%H-N*%Y

In other vaccine news, Ghana received the first transport of coronavirus vaccine from the United Nations-backed COVAX program on Wednesday.

TsG)TeHDYMHe~

The organization said it shipped 600,000 treatments of the Oxford-AstraZeneca vaccine to the African country. It expects to send some to the Ivory Coast later this week. And COVAX hopes to provide at least 2 billion shots to other poor countries.

2aENUy&stR)nlX9.1!rH

I'm Caty Weaver.

7b6[GB=,BR32WeEA!2PH=QSAks(8.)QH%mglHJ

重点单词   查看全部解释    
efficacy ['efikəsi]

想一想再看

n. 功效

联想记忆
weaver ['wi:və]

想一想再看

n. 织布者,织工

 
identified

想一想再看

adj. 被识别的;经鉴定的;被认同者 v. 鉴定(id

 
vaccination [.væksi'neiʃən]

想一想再看

n. 接种疫苗,种痘

 
produce [prə'dju:s]

想一想再看

n. 产品,农作物
vt. 生产,提出,引起,

联想记忆
administration [əd.mini'streiʃən]

想一想再看

n. 行政,管理,行政部门

联想记忆
temperature ['tempritʃə(r)]

想一想再看

n. 温度,气温,体温,发烧

 
minor ['mainə]

想一想再看

adj. 较小的,较少的,次要的
n. 未成年

联想记忆
vaccine ['væksi:n]

想一想再看

n. 疫苗

 
effective [i'fektiv]

想一想再看

adj. 有效的,有影响的

联想记忆

发布评论我来说2句

    最新文章

    可可英语官方微信(微信号:ikekenet)

    每天向大家推送短小精悍的英语学习资料.

    添加方式1.扫描上方可可官方微信二维码。
    添加方式2.搜索微信号ikekenet添加即可。