CDC2周内第三次更新CDC更新指南承认冠状病毒可以在空中传播,又更新了:CDC删除了冠状病毒的空中传播指南,称更新为“草稿版本”,再次更新指南说Covid-19可以通过气溶胶传播

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总统2月初就对Woodward说了,7个月之后,9月21日CDC更新指南承认冠状病毒可以在空中传播,2,3天后又更新了:CDC删除了冠状病毒的空中传播指南,称更新为“草稿版本”,10月5日再次更新说Covid-19可以通过气溶胶传播。

CDC整天忙于更新指南,不会是病毒演化得太快吧?也太不政治化了。


40 mins ago
Coronavirus spreads through airborne particles, aerosols, CDC update says
The coronavirus spreads through droplets and small airborne particles suspended in the air and inhaled, per updated guidance from the Centers for Disease Control and Prevention (CDC).

21 min ago
Updated CDC guidance acknowledges coronavirus can spread through the air
From CNN's Naomi Thomas

The United States Centers for Disease Control and Prevention updated guidance on its website to say coronavirus can commonly spread "through respiratory droplets or small particles, such as those in aerosols," which are produced even when a person breathes.

"Airborne viruses, including Covid-19, are among the most contagious and easily spread," the site now says.

Previously, the CDC page said that Covid-19 was thought to spread mainly between people in close contact -- about 6 feet (approximately 1.8 meters) -- and "through respiratory droplets produced when an infected person coughs, sneezes or talks."

Now, the page reads:
"There is growing evidence that droplets and airborne particles can remain suspended in the air and be breathed in by others, and travel distances beyond 6 feet (for example, during choir practice, in restaurants, or in fitness classes). In general, indoor environments without good ventilation increase this risk."
 
最后编辑:
16 mins ago

CDC deletes coronavirus airborne transmission guidance, says update was 'draft version'
The Centers for Disease Control and Prevention issued a correction on its website Monday, saying a draft of proposed changes, including guidance on airborne transmission of coronavirus, was posted in error.

6 min ago

CDC reverts to previous language about how coronavirus is transmitted, saying it was "was posted in error"
From CNN's Jamie Gumbrecht and Naomi Thomas


Signage stands outside the Centers for Disease Control and Prevention headquarters in Atlanta on March 14.

Signage stands outside the Centers for Disease Control and Prevention headquarters in Atlanta on March 14. Elijah Nouvelage/Bloomberg/Getty Images

The US Centers for Disease Control and Prevention on Monday abruptly reverted to its previous guidance about how coronavirus is transmitted, removing references to airborne transmission it had posted just days earlier.
“A draft version of proposed changes to these recommendations was posted in error to the agency’s official website. CDC is currently updating its recommendations regarding airborne transmission of SARS-CoV-2 (the virus that causes COVID-19). Once this process has been completed, the update language will be posted,” Jason McDonald, a CDC spokesperson, said in a response emailed to CNN.
The guidance had been quietly updated on Friday, according to the CDC’s website. On Sunday, CNN was the first to report the change. The CDC responded to CNN just before noon on Monday to say it was reverting to the previous guidance.

Despite several studies that have shown the novel coronavirus can spread through small particles in the air, the CDC page now says that Covid-19 is thought to spread mainly between people in close contact – about six feet – and “through respiratory droplets produced when an infected person coughs, sneezes or talks” – the same language it posted months ago.

About the Friday change: In language posted Friday and now removed, CDC said Covid-19 most commonly spread between people who are in close contact with one another, and went on to say it’s known to spread “through respiratory droplets or small particles, such as those in aerosols, produced when an infected person coughs, sneezes, sings, talks or breathes.”

These particles can cause infection when “inhaled into the nose, mouth, airways, and lungs,” the agency said. “This is thought to be the main way the virus spreads.”

“There is growing evidence that droplets and airborne particles can remain suspended in the air and be breathed in by others, and travel distances beyond 6 feet (for example, during choir practice, in restaurants, or in fitness classes),” the page said in the Friday update, which has since been removed. “In general, indoor environments without good ventilation increase this risk.

In the Friday update, the CDC had added new measures to protect yourself in others, including recommendations to use air purifiers to reduce airborne germs in indoors spaces and clear guidance to “stay at least 6 feet away from others, whenever possible.”

The updated CDC page had also changed language around asymptomatic transmission, shifting from saying “some people without symptoms may be able to spread the virus” to saying “people who are infected but do not show symptoms can spread the virus to others.

Also on Friday, CDC updated its coronavirus testing guidance to stress that anyone who has been in contact with an infected person should be tested for coronavirus. A controversial earlier update was not written by CDC scientists and posted online before it had undergone the normal scientific review process, two sources confirmed to CNN last week.

CNN reported last week that US Health and Human Services communications officials appointed by President Trump had recently pushed to change language of weekly science reports released by the CDC so as not to undermine Trump's political message, according to a federal health official. Officials within HHS had defended the demand, saying the CDC fell under the agency's umbrella and that all communications and public documents needed to be cleared at the top, and CDC Director Dr. Robert Redfield has said “at no time has the scientific integrity” of these reports been compromised.
 
川普真不容易啊, 美国技术官僚体系, 随着国力的下降, 正在加速腐朽. 老闯独立试图挽救美国. 但是手下能人不多.

还要腾出精力对付几近疯狂的逢川必反的一大堆体制内外的二比.

疫情到这个地步, 福气, CDC, FDA, 主要责任.
 
这个不能怪中国,WHO隐瞒吧?感染了7百万人,现在还没能确切证实此病毒是否能通过空气传播,美国科学家很严谨,大概是需要眼见为实。
 
这没什么。科学总是在不断完善的
相反,如果坚持错的指南才是最糟糕的
 
7 hr 16 min ago
US lawmakers set sights on CDC after latest mishap
From CNN's Lauren Fox, Jeremy Diamond and Nick Valencia

US Rep. Raja Krishnamoorthi (D-IL) asks questions during a hearing before the House Intelligence Committee on Capitol Hill in Washington, DC, on November 20, 2019

US Rep. Raja Krishnamoorthi (D-IL) asks questions during a hearing before the House Intelligence Committee on Capitol Hill in Washington, DC, on November 20, 2019 Samuel Corum/Pool/Getty Images

The posting and removal of US Centers for Disease Control and Prevention guidelines on airborne transmission for coronavirus prompted a flurry of questions from Capitol Hill this week, with both sides of the aisle reaching out for answers on what happened.

And Democrats were not buying the CDC's innocuous explanation of an unfortunate mistake. They argue it is just the latest example in a long pattern of confusing behavior where the CDC makes one decision and then days later backs off.

"The CDC just published scientifically valid information and then pulled it off their website, and this is very likely a scandal," Sen. Brian Schatz, a Democrat from Hawaii, said Tuesday.

"One way or another, we're going to investigate it and find out," Illinois Rep. Raja Krishnamoorthi, a Democrat on the House Oversight Committee, said.

The CDC guidance pertained to the way the novel coronavirus is spread. While it's known that Covid-19 can spread through droplets among people standing less than six feet apart, research has continued to explore how the virus suspends in aerosolized particles in the air and transmits to people more than six feet away.

The CDC said the retraction of new guidance about airborne coronavirus transmission was the result of a confused staffer who hit "publish" without approval, according to the most detailed explanation yet of the agency's website mishap.

Several other current and former federal health officials also told CNN the document was posted in error before it had gone through the full review process.
Read the full story:

RELATED
Lawmakers set sights on CDC after latest mishap
 
7 hr 16 min ago
US lawmakers set sights on CDC after latest mishap
From CNN's Lauren Fox, Jeremy Diamond and Nick Valencia

US Rep. Raja Krishnamoorthi (D-IL) asks questions during a hearing before the House Intelligence Committee on Capitol Hill in Washington, DC, on November 20, 2019

US Rep. Raja Krishnamoorthi (D-IL) asks questions during a hearing before the House Intelligence Committee on Capitol Hill in Washington, DC, on November 20, 2019 Samuel Corum/Pool/Getty Images

The posting and removal of US Centers for Disease Control and Prevention guidelines on airborne transmission for coronavirus prompted a flurry of questions from Capitol Hill this week, with both sides of the aisle reaching out for answers on what happened.

And Democrats were not buying the CDC's innocuous explanation of an unfortunate mistake. They argue it is just the latest example in a long pattern of confusing behavior where the CDC makes one decision and then days later backs off.

"The CDC just published scientifically valid information and then pulled it off their website, and this is very likely a scandal," Sen. Brian Schatz, a Democrat from Hawaii, said Tuesday.

"One way or another, we're going to investigate it and find out," Illinois Rep. Raja Krishnamoorthi, a Democrat on the House Oversight Committee, said.

The CDC guidance pertained to the way the novel coronavirus is spread. While it's known that Covid-19 can spread through droplets among people standing less than six feet apart, research has continued to explore how the virus suspends in aerosolized particles in the air and transmits to people more than six feet away.

The CDC said the retraction of new guidance about airborne coronavirus transmission was the result of a confused staffer who hit "publish" without approval, according to the most detailed explanation yet of the agency's website mishap.

Several other current and former federal health officials also told CNN the document was posted in error before it had gone through the full review process.
Read the full story:

RELATED
Lawmakers set sights on CDC after latest mishap
美国人就折腾吧,谁让它有个有个能折腾的总统呢。
 
这跟总统没关系, 至少和这届总统没关系,

1, 技术官僚,
2. 老川上台, FBI都不归他管, 美联储抗命, DOJ查他...,他能指挥的, 只有参议院.

应该说美国的弊端不是这一届政府的问题, 是几十年疏忽破败, 傲慢偏见, 以及有点钱就福利, 就买票, 就全球化地撒了有关系. 跟政治正确之下, 大学教授不能说中文的"那个"有关系. 跟几座盛行, "凡是川普说的就一定反对"有关系.

美国需要川普破, 才有可能重新立.

希望川普能下面四年, 能放开手脚, 深度改革美国政府.
 
最后编辑:
CDC 主任还在和总统争论各种分歧,福奇医生说有足够的证据表明病毒可以在空气中传播。这个不是呼吸系统疾病的常识吗?都死了20万人了,美国各大医疗机构,专家还在争论给没完没了。

Trump has lost patience with CDC head after series of mixed messages
By Jeremy Diamond, Nick Valencia and Sara Murray, CNN

Updated 10:10 AM ET, Fri September 25, 2020


 
CDC再次更新指南说Covid-19可以通过气溶胶传播

总统2月初就对Woodward说了,7个月之后,9月21日CDC更新指南承认冠状病毒可以在空中传播,2,3天后又更新了:CDC删除了冠状病毒的空中传播指南,称更新为“草稿版本”,10月5日再次更新说Covid-19可以通过气溶胶传播。

CDC整天忙活更新指南,不会是病毒演化得太快吧?也太不政治化了。

32 min ago
CDC again updates guidance to say Covid-19 can spread by aerosol
From CNN's Jamie Gumbrecht

A person waits in line to be tested for COVID-19 at a city test site in the Brooklyn neighborhood of Borough Park on October 05, 2020 in New York City.

A person waits in line to be tested for COVID-19 at a city test site in the Brooklyn neighborhood of Borough Park on October 05, 2020 in New York City. Spencer Platt/Getty Images

The US Centers for Disease Control and Prevention has again updated its guidance about how Covid-19 spreads to include information about potential for airborne spread.

“CDC continues to believe, based on current science, that people are more likely to become infected the longer and closer they are to a person with COVID-19,” the agency said in a statement on Monday.

“Today’s update acknowledges the existence of some published reports showing limited, uncommon circumstances where people with COVID-19 infected others who were more than 6 feet away or shortly after the COVID-19-positive person left an area. In these instances, transmission occurred in poorly ventilated and enclosed spaces that often involved activities that caused heavier breathing, like singing or exercise. Such environments and activities may contribute to the buildup of virus-carrying particles.”

Some background: Last month, the agency updated its guidance to say Covid-19 could spread through the air, then abruptly reverted to its previous guidance days later.

At the time, the agency said a draft version of proposed changes had been posted in error, and once the scientific review process was completed, the new language would be posted.

CDC said people can protect themselves from the coronavirus by staying six feet away from others, wearing a mask that covers their nose and mouth, washing hands frequently, cleaning surfaces and staying home when sick.
 
最后编辑:
什么情况?这不是扯蛋吗?美国在夫妻领导下的医疗技术官员。有点准谱吗?二月份就应该有结论。
 
谁知压力来自哪位?
 
那一开始说不让带口罩,有没考虑过,气溶胶传染的可能性?

一开始没有第一手证据,但是有中国信息,而且呼吸道传染病,口罩有用的可能性极大。而不是极小。

那么那时的医疗官员是不是在有意误导,后来HCQ,后来气溶胶,后来封边,等一些列错误言论,翻来覆去,扰乱普通民众的防疫理念。是不是故意的?

民众包括非医疗专业的川普,没有时间和能力完全跟踪病毒,那么是不是就必须信任医疗官员。医疗官员不停地翻来覆去,毫无基本逻辑的言论,直接会导致一个国家的防疫失败。没错吧。
 
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