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美国CDC主任弗里登谈抗击埃博拉

(2014-08-15 15:21:30)
分类: 社会与生活
2014.08.13
http://photos.state.gov/libraries/america/3239/2014_Week_2/08122014_AP774388489224_300.jpg

8月7日,在塞拉利昂弗里敦(Freetown)街头人行道上,一条横幅鼓励埃博拉患者立即前往医疗中心就医。

美国疾病控制与预防中心(Centers for Disease Control and Prevention [CDC]主任汤姆·弗里登博士(Tom Frieden)撰写的以下博文最初于87日见诸《赫芬顿邮报》(Huffington Post)网站。

 

抗击埃博拉疫情关系重大:一丝余烬可导致死灰复燃

汤姆·弗里登医学博士及公共卫生学硕士

疾病控制与预防中心主任

疾病控制与预防中心和我们的合作伙伴目前正在与历史纪录上爆发的最严重和最复杂的埃博拉(Ebola)病毒性疾病疫情作斗争。

西非地区(West Africa)已有数百病例,正在尼日利亚出现的一批新病例非常令人担忧。埃博拉的传播说明,如果我们不严加控制传染、追踪病患接触者和将出现症状的人加以隔离将会发生什么样的情况。

有两点对于理解埃博拉如何传播非常重要。

证据显示,埃博拉只通过患病者传播——接触了病毒但尚未发病的人没有传染性。埃博拉的潜伏期为平均8到10天,有极少数病例的潜伏期短到两天,长达21天。出于这个原因,我们建议对可能接触了病毒者的观察为21天。

人在潜伏期没有传染力;只有在开始出现症状时才会传染。

第二,证据显示,埃博拉病毒不会通过一般接触或在空气或水中传播。

埃博拉是通过直接接触到受感染、有症状的人的体液或者接触了带病毒的物体——如针头等而传染。

埃博拉在非洲迄今难以控制,但如果出现在美国,我们能够控制它。

在非洲,埃博拉病毒由于医院防感染措施不足以及采用可直接接触到人的体液的传统葬礼方式而传播。我们这里能够避免上述问题。

美国医院采用的标准化的严格防感染程序将会防止埃博拉传播。

问题不在于埃博拉具有高度传染力——它不具有高度传染力。

但利害关系重大。

因此,控制埃博拉病毒的关键是采用细致严格的程序,确保一丝不苟地按照防感染措施行事。

过去十年中,美国有过5例境外带入的出血热病例——一例的致因是马堡(Marburg)病毒,另外四例是拉塞(Lassa)病毒。这两种病毒均与埃博拉相像。每一病例都被美国公共卫生系统识别,并且通过一丝不苟的防感染措施,没有使任何其他人受到传染。

保护美国人的最佳方法是制止住西非的疫情。

我们知道如何控制埃博拉。过去的埃博拉疫情是通过隔离病人、在医院大力采用防感染措施、积极彻底地追踪受感染群体以及社区宣传教育而得到控制。

疾病控制与预防中心、世界卫生组织(World Health Organization)以及我们的合作伙伴决心投入一大批资源和技术力量,帮助制止这次疫情。它已经造成太多生命损失。我们前面的道路是艰难的,需要经历数月之久,但我们必须为控制住这场可怕的疫情加倍努力。

疾病控制与预防中心将在未来几周内向西非派出至少50名公共卫生人员。他们当中有传染病学家,数据管理者,卫生教育工作者以及其他能够协助控制疫情的专家。

我们过去制止住了非洲的历次埃博拉疫情,疾病控制与预防中心有准备帮助世界卫生组织同样制止住这次疫情。

作为美国政府、世卫组织和其他多边机构及非政府组织之间的合作计划“全球卫生安全议程”(Global Health Security Agenda)的努力之一,总统的2015年财政年度计划含有对疾病控制与预防中心的4500万美元预算,用于加速对传染病的识别、预防和反应,从而有可能减少这些疾病造成的直接和间接代价。为每个国家提高这些能力,给所有国家增进健康安全。

这犹如扑灭森林火灾的战斗。

如果留下一丝余烬,疫情便可能卷土重来。

这一丝余烬可以是未被发现的病例、未得到追踪的接触者或未得到有效保护的卫生工作者,也可以是方式不安全的葬礼。

我们的努力不仅是要制止这些疫情,而是也要从中加强实验室、急救中心的能力,让卫生工作者更加训练有素,使他们能够在未来埃博拉和其他疾病疫情爆发前,预防、发现和制止转播。



Read more: http://iipdigital.usembassy.gov/st/chinese/article/2014/08/20140813305612.html#ixzz3ARXBX8wh

CDC Director Frieden Warns of High Stakes in Fighting Ebola

12 August 2014
http://photos.state.gov/libraries/america/3239/2014_Week_2/08122014_AP774388489224_300.jpg

A banner encouraging people suffering from Ebola to go immediately to a health center for treatment is seen on a sidewalk in the city of Freetown, Sierra Leone, on August 7.

This blog post by U.S. Centers for Disease Control and Prevention Director Tom Frieden originally appeared on the Huffington Post website on August 7.

 

The High Stakes in Fighting Ebola: Leave One Burning Ember and the Epidemic Could Re-Ignite
By Tom Frieden, MD, MPH
Director, Centers for Disease Control and Prevention (CDC)

CDC and our partners are currently fighting the biggest and most complex outbreak of Ebola virus disease ever recorded.

There are hundreds of cases in West Africa and now a new cluster of cases in Nigeria is very concerning. The spread of Ebola shows what happens if we don't have meticulous infection control, contact tracing, and proper isolation of those with symptoms of the disease.

There are two things that are very important to understand about how Ebola spreads.

The evidence suggests that Ebola only spreads from sick people — not from people who have been exposed to the disease but haven't yet become sick from it. The illness has an average 8-10 day incubation period, although in rare instances the incubation period may be as short as two days or as long as 21 days, which is why we recommend monitoring for 21 days after any potential exposure.

People are not contagious during that incubation period; they become contagious only when they start having symptoms.

Second, the evidence shows that Ebola outbreaks aren't propagated by casual contact or through the air or in water.

Ebola is transmitted through direct contact with body fluids of an infected, symptomatic sick person, or exposure to objects such as needles that have been contaminated.

This is a disease that has been hard to stop in Africa, but if it were to show up here, we can stop in the United States.

Ebola virus disease spreads in Africa through inadequate infection control in hospitals as well as through traditional burial ceremonies that directly expose people to body fluids. We can avoid those problems here.

The standard, rigorous infection control procedures used in hospitals in the United States will prevent spread of Ebola.

The problem isn't that Ebola is highly infectious — it's not.

It's that the stakes are so high.

So the key to contain the virus is to have meticulous, rigorous procedures in place to ensure adherence to scrupulous infection control.

In the past decade, the United States has had five imported cases of hemorrhagic fevers — one of Marburg and four of Lassa, both viruses that are similar to Ebola. Each time, the American public health system identified the cases and through scrupulous infection control procedures prevented any one else from becoming ill.

The best way to protect Americans is to stop the outbreak in West Africa.

We know how to control Ebola. Previous outbreaks of Ebola virus disease have been contained by patient isolation, rigorous use of infection control measures in hospitals, intensive and thorough contact tracing in affected communities, and community education.

CDC, the World Health Organization, and our partners are committing to deliver a surge of resources and expertise to help end this outbreak. Far too many lives have been lost already. We have a difficult road ahead, which will take many months, but we must redouble our efforts to bring this terrible outbreak under control.

CDC is sending at least 50 public health staff to West Africa in the next few weeks. These staff members include epidemiologists, data managers, health educators, and other specialists who can assist with efforts to control the outbreak.

We have stopped every previous outbreak of Ebola in Africa, and CDC is ready to help the World Health Organization stop this one, too.

As part of the Global Health Security Agenda, a partnership of the U. S. government, WHO and other multilateral organizations and non-government actors, the President's FY 2015 budget includes $45 million for CDC to accelerate progress in detection, prevention, and response and potentially reduce some of the direct and indirect costs of infectious diseases. Improving these capabilities for each nation improves health security for all nations.

It's like fighting a forest fire.

Leave behind one burning ember and the epidemic could re-ignite.

That ember could be one case undetected, one contact not traced or health care worker not effectively protected, or burial ceremony conducted unsafely.

Our efforts will not only stop these outbreaks, but we are working to leave behind stronger laboratories, emergency operations centers, and trained public health staff who can prevent, detect, and stop future outbreaks of Ebola and other diseases before they spread.



Read more: http://iipdigital.usembassy.gov/st/english/article/2014/08/20140812305449.html#ixzz3ARXGMjHC

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