医学专家正本清源：所有新冠疫苗有效率的计算都是基于防发病，而不是基于防感染

[向问天]

以色列最新数据，约60%已经接种的人占新感染人中的60％，说明辉瑞疫苗防感染的效果是0​

 

[贵圈]

看这楼，

正本清源

https://bbs.comefromchina.com/threads/1763237/

 

[lindamy]

Israel says Pfizer vaccine just 64% effective in real world as delta variant continues to spread rapidly​

Last Updated: July 6, 2021 at 1:28 p.m. ETFirst Published: July 6, 2021 at 10:49 a.m. ET
By Ciara Linnane

Russia and Indonesia set new one-day record death tolls and Indonesia sources oxygen from Singapore​

A dose of the Pfizer-BioNTech vaccine is administered Monday in Tel Aviv.​

JACK GUEZ/AGENCE FRANCE-PRESSE/GETTY IMAGES

The global tally of confirmed cases of COVID-19 climbed above 184 million on Tuesday, as the highly transmissible delta variant continued to race across the world and the Israeli health ministry said it believes delta has weakened the overall effectiveness of its vaccine program.

Israel was an early success in the rush to vaccinate its residents but has fully vaccinated just 57% so far, according to Johns Hopkins University, and has primarily used the vaccine developed by Pfizer and German partner BioNTech. That vaccine uses mRNA technology, which is also used in the Moderna vaccine, both of which are authorized in the U.S.

The Israeli health ministry said it now believes the vaccine is just 64% effective at preventing symptomatic infections, which compares with the efficacy rate of about 95% in clinical trials back in 2020, it said in a statement posted on Twitter. The vaccine remains roughly 93% effective at preventing hospitalizations and death, the ministry said. Experts have repeatedly warned of the need to vaccinate at least 70% of the world’s population to prevent new variants emerging that may prove resistant to the existing vaccines.

The news comes as Indonesia and Russia record daily death tolls, with Russian authorities reporting 737 more fatalities and a steep rise in new infections. Indonesia is sourcing oxygen from Singapore and calling on other countries to help as it counted a record 728 deaths in a single day, as AFP reported.
The prime minister of Luxembourg, Xavier Bettel, is hospitalized with COVID symptoms, after testing positive and showing low oxygen levels in his blood, the Guardian reported. “The prime minister’s current medical condition is considered serious, but stable,” the government said in a statement.

President Joe Biden is expected to speak later Tuesday on his administration’s fight against the COVID-19 pandemic, with the remarks coming after his administration fell short of his goal of having 70% of U.S. adults at least partially vaccinated by the Fourth of July.
Biden is due to speak at 2:45 p.m. Eastern in Washington about “the COVID-19 response and the vaccination program,” the White House said in a statement.

The percentage of U.S. adults who have received at least one vaccine dose stands at 67.1%, according to a Centers for Disease Control and Prevention tracker, 2.9 percentage points shy of the July 4 goal set by Biden in early May. Some 157 million Americans are fully vaccinated, equal to 47.4% of the overall population, meaning they have received two shots of the vaccines developed by Pfizer PFE, -1.35% with BioNTech BNTX, -5.38% and by Moderna MRNA, -0.51%, or one shot of Johnson & Johnson’s JNJ, -0.95% single-dose regimen. The AstraZeneca AZN, -1.28% AZN, +0.50% vaccine has not been authorized for use in the U.S.

On Sunday, the president mixed a White House Independence Day party for military families and essential workers with a celebration of freedom from the worst of the pandemic, as he described getting vaccinated as “the most patriotic thing you can do.”

Israel says Pfizer vaccine just 64% effective in real world as delta variant continues to spread rapidly

The global tally of confirmed cases of COVID-19 climbed above 184 million on Tuesday, as the highly transmissible delta variant continued to race across the...

www.marketwatch.com

 

[悠游姜江]

美国跟踪疫苗注射效果。包括无症状感染。说明，实战，mRNA是防感染地。

打脸

 

[贵圈]

跟我无关，跟辉瑞有关。

疫苗效果当然是防感染。只是辉瑞没有做到宣传的效果。

到现在也有防感染率，防重症率。

好好学知识吧。

 

[这都不是事儿]

大疫情，可以说中和病毒水平越高越好。维持时间越长越好。

为啥有打第二针?

打第二针，第三针，是为了增强免疫记忆，提高被感染时的反应速度。

 

[这都不是事儿]

估计大天朝的疫苗是这样的。 老向急得到处找砖家。

你应该反复读读你自己可耻的帖子。

 

[shadows]

你应该反复读读你自己可耻的帖子。

哇靠， 老向出现了？？

 

[这都不是事儿]

哇靠， 老向出现了？？

我就是替身。

 

[贵圈]

老向比你大气