中国第二款，即科兴疫苗，土耳其第三期83.5%。10 weeks 内可生产出针对变异病毒的产品。2021.6.1 WHO批准

www.nytimes.com

Virus Variant in Brazil Infected Many Who Had Already Recovered From Covid-19 (Published 2021)

The first detailed studies of the so-called P.1 variant show how it devastated a Brazilian city. Now scientists want to know what it will do elsewhere.
www.nytimes.com www.nytimes.com

Virus Variant in Brazil Infected Many Who Had Already Recovered From Covid-19
The first detailed studies of the so-called P.1 variant show how it devastated a Brazilian city. Now scientists want to know what it will do elsewhere.
In just a matter of weeks, two variants of the coronavirus have become so familiar that you can hear their inscrutable alphanumeric names regularly uttered on television news.

B.1.1.7, first identified in Britain, has demonstrated the power to spread far and fast. In South Africa, a mutant called B.1.351 can dodge human antibodies, blunting the effectiveness of some vaccines.

Scientists have also had their eye on a third concerning variant that arose in Brazil, called P.1. Research had been slower on P.1 since its discovery in late December, leaving scientists unsure of just how much to worry about it.

“I’ve been holding my breath,” said Bronwyn MacInnis, an epidemiologist at the Broad Institute.

Now three studies offer a sobering history of P.1’s meteoric rise in the Amazonian city of Manaus. It most likely arose there in November and then fueled a record-breaking spike of coronavirus cases. It came to dominate the city partly because of an increased contagiousness, the research found

But it also gained the ability to infect some people who had immunity from previous bouts of Covid-19. And laboratory experiments suggest that P.1 could weaken the protective effect of a Chinese vaccine now in use in Brazil.

www.the-scientist.com

Variant Found in Brazil Could Evade Immunity from Past Infection

The P.1 variant, which has also been detected in five US states, could be responsible for cases of reinfection, according to a preprint.
www.the-scientist.com www.the-scientist.com

Manaus experienced another surge of cases in December, and the study’s model predicts that P.1 could evade antibodies from previous infections 25–61 percent of the time, perhaps pointing to reinfections as a driver of the recent COVID-19 wave.
感染过的会重新感染，用灭活病毒做的疫苗有效率不高也可以解释了。可能巴西病毒变异太多了
It does look like the vaccines won't save us. The best strategy is probably to find the cure.
 
最后编辑:
lindamy 说:

独家：研究表明中国科兴疫苗对巴西P1新冠病毒变体有效--消息​

路透新闻部

路透圣保罗3月8日 - 熟悉巴西一项研究的消息人士周一告诉路透，巴西此项研究的初步数据表明，中国科兴生物研发的COVID-19疫苗对首次在巴西发现的病毒P1变体有效。

这位消息人士说，这项研究对已接种疫苗者的血液进行了新冠病毒巴西变体的检测。但该消息人士未提供数据细节。科兴生物疫苗Coronavac是目前巴西接种使用的主要新冠疫苗。(完)

编译 刘秀红；审校 陈宗琦

cn.reuters.com

Reuters | Breaking International News & Views

Find latest news from every corner of the globe at Reuters.com, your online source for breaking international news coverage.
cn.reuters.com cn.reuters.com
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P.1 是巴西的第二个厉害变种，可以逃避以前感染康复者的抗体25%－61%，太可怕了
 
Screenshot_20210309_070924.jpg
 
一手消息（土耳其的朋友）：
1） 一个月前，他的城市（安卡拉南部的中型城市70万左右人口）：当中国疫苗接种在20%时候，并没有出现感染数量的大幅下降；
2） 但是随着疫苗接种到50%，整个感染数量断崖式下降。
3）他们城市会在月底完成到80%以上的接种，估计整个市会在一个月之后恢复正常。

他自己比较倒霉，去年12月得过了
 

Sinovac COVID-19 vaccine appears safe, triggers antibodies in trial in children: researcher​

Author of the article:
Reuters
Reuters

Publishing date: Mar 22, 2021 • 5 hours ago • 1 minute read •
FILE PHOTO: A worker unloads a box of Sinovac Biotech's CoronaVac vaccines against the coronavirus disease (COVID-19) from a Chinese military aircraft.
FILE PHOTO: A worker unloads a box of Sinovac Biotech's CoronaVac vaccines against the coronavirus disease (COVID-19) from a Chinese military aircraft. PHOTO BY ELOISA LOPEZ /REUTERS

Article content​

BEIJING — Sinovac Biotech’s COVID-19 vaccine appears to be safe and able to trigger immune responses among children and adolescents, according to preliminary results from early and mid-stage trials, the company said late on Monday.

The preliminary data was from Phase I and II clinical trials involving over 500 people between the ages of three and 17 who received two shots of either medium or low dosage of vaccine, or a placebo.

Most adverse reactions were mild, Zeng Gang, a researcher with the company, told an academic conference in Beijing.

Two children who received the lower dose were reported to have experienced higher fever, categorized as grade 3, he said, without providing details or specific temperature.

The antibody levels triggered by Sinovac’s CoronaVac were higher than those seen in adults aged 18 to 59 and in elderly people in earlier clinical trials, Zeng said in the presentation.

Article content​

For children three to 11 years old, the lower dose could induce favorable antibody responses, and the medium dose worked well for those aged 12 to 17, he said.

The preliminary data has not yet been published in a peer-reviewed medical journal.

Sinovac’s overseas Phase III trials testing the vaccine’s ability to prevent COVID-19 disease have so far not included minors.

The company is also testing a third booster shot in a China-based clinical trial, with participants given a third dose around eight months after receiving the second.

Sinovac has supplied 160 million vaccine doses to 18 countries and regions including China, with over 70 million doses administered. (Reporting by Rosanne Liu and Ryan Woo; Editing by Peter Henderson and Bill Berkrot)

ottawacitizen.com

Sinovac COVID-19 vaccine appears safe, triggers antibodies in trial in children: researcher

BEIJING — Sinovac Biotech’s COVID-19 vaccine appears to be safe and able to trigger immune responses among children and adolescents, according to preliminary result…
ottawacitizen.com ottawacitizen.com
 
智利医院急诊室里几乎看不到70岁以上的老人，因为他们打过中国疫苗了。这说明，虽然病毒在变异，传染性在增加，但是中国疫苗有效。

Dr Sebastian Ugarte, who runs the intensive care unit in Santiago’s Indisa clinic, said that every bed is occupied at his facility, even though the number of critical care units nearly doubled this week.

“People over 70, most of whom have already been vaccinated, have almost disappeared from our emergency rooms,” Ugarte told Al Jazeera on Wednesday.

www.aljazeera.com

Alarming rise in COVID cases in Chile despite vaccination efforts

Latin American country is in a severe health crisis as ICU units overflow despite successful vaccination run.
www.aljazeera.com www.aljazeera.com
 
向问天 说:
智利医院急诊室里几乎看不到70岁以上的老人，因为他们打过中国疫苗了。这说明，虽然病毒在变异，传染性在增加，但是中国疫苗有效。

Dr Sebastian Ugarte, who runs the intensive care unit in Santiago’s Indisa clinic, said that every bed is occupied at his facility, even though the number of critical care units nearly doubled this week.

“People over 70, most of whom have already been vaccinated, have almost disappeared from our emergency rooms,” Ugarte told Al Jazeera on Wednesday.

www.aljazeera.com

Alarming rise in COVID cases in Chile despite vaccination efforts

Latin American country is in a severe health crisis as ICU units overflow despite successful vaccination run.
www.aljazeera.com www.aljazeera.com
点击展开...
傻叉向啄屎又来喷粪了。最烂的疫苗就是科兴的。智利打的疫苗90%以上是科兴的，但确诊人数一直上升。
B31D52C6-EE94-43DE-82B8-D709401406BB.jpeg
 
向问天 说:
智利医院急诊室里几乎看不到70岁以上的老人，因为他们打过中国疫苗了。这说明，虽然病毒在变异，传染性在增加，但是中国疫苗有效。

Dr Sebastian Ugarte, who runs the intensive care unit in Santiago’s Indisa clinic, said that every bed is occupied at his facility, even though the number of critical care units nearly doubled this week.

“People over 70, most of whom have already been vaccinated, have almost disappeared from our emergency rooms,” Ugarte told Al Jazeera on Wednesday.

www.aljazeera.com

Alarming rise in COVID cases in Chile despite vaccination efforts

Latin American country is in a severe health crisis as ICU units overflow despite successful vaccination run.
www.aljazeera.com www.aljazeera.com
点击展开...
你这个五毛怎么那么无耻啊？自己先看看JHU的疫情实时更新，什么巴西，智利，塞尔维亚这些打中共疫苗的国家在过去两个月的新增病例曲线都比以前上升更猛。你要挣钱我们理解，但有点儿节操好不好？
 
布鲁斯南 说:
你这个五毛怎么那么无耻啊？自己先看看JHU的疫情实时更新，什么巴西，智利，塞尔维亚这些打中共疫苗的国家在过去两个月的新增病例曲线都比以前上升更猛。你要挣钱我们理解，但有点儿节操好不好？
点击展开...
哈哈哈哈， 你问他们要节操？ 尤其是向问天这种败类中的人渣？
你难道真的是传说中的图样图森破，有时候还拿衣服？
 
明的凡 说:
阶段性数字出来了。

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智利、土耳其，等等几十个国家，都还在加大力度购买中国疫苗。如果没有效果，那是他们太蠢了。如果他们不蠢，就是你们太蠢。

如果智利人打了中国疫苗后，这些人的感染率还是一样，肯定就不会再加大采购。比如南非，发现阿斯利康不行，立即退货，是不可能加大采购的。

Chile receives 2 million doses of COVID-19 vaccine​

A new shipment carrying 2 million doses of the Sinovac COVID-19 vaccine arrived in Chile on Sunday


Written by: Associated Press Television News

Updated Mar 22, 2021 7:45 AM
 
“一掐脖子就翻白眼、一松手就吹牛逼” 这句话每隔一段时间就能派上用场，乐此不疲。
它们就是人家的夜壶，尿急了，用你们的嘴一下，用完了，就被塞床底了。
 
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