专家警告:今冬美或出现更危险的新冠病毒亚变异株

Health Experts Warn Of New Omicron Subvariants As Winter Approaches 
As winter approaches, health experts are warning of new Covid-19 Omicron subvariants that are able to dodge immune defenses, posing a threat to both vaccinated and previously infected people. NBC News medical fellow Dr. Akshay Syal breaks down whether the new Omicron subvariants could cause a spike in cases and whether Covid-19 vaccine booster shots can still protect people against the virus.
2022.10.20
tags: 新闻 健康 新冠 医疗
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  • 1

    Well, as they say, winter is coming, and there are growing concerns from health experts about a group of Omicron subvariants.

  • 2

    Yeah, these new strains are able to dodge our immune defenses, and they pose a new threat to both vaccinated and previously infected people.

  • 3

    Here to help us break that all down, NBC News medical fellow Dr. Akshay Syal joins us. Thank you for being here in studio with us.

  • 4

    So let's talk about these new variants, they're a derivative of the Omicron strain. What is it about these Omicron spin-offs, if you want to call them, that we should be concerned about? What should we be worried about?

  • 5

    So, good afternoon, it's good to be here with you, and what these experts are describing to us is this is a viral evolution on steroids.

  • 6

    We're seeing a bunch of little spin-offs of Omicron. There's a couple concerns here, the first is we're going to see another rise in cases as we head into the fall and winter season.

  • 7

    The other thing we're watching for is, is those tools that we have in our toolbox will they still be effective? I spoke to Dr. Fauci about this and here's what he had to say.

  • 8

    If BA.4.6 evades and you shelled and that's another tool in our armamentarium that will not be usable for people who are immune compromised.

  • 9

    And so what he was referring to is Evusheld⁽¹⁾, it's a monoclonal antibody that if you have a weak immune system, you actually get as an injection to prevent you from getting sick.

  • 10

    And the concern is that may not work with these spin-offs. - So that's in addition to the vaccination? - If you have a weakened immune system.

  • 11

    First off, great interview with Dr. Fauci. Thank you for bringing us that information, but also, I mean, just make the booster shots worth it then, I mean is it something that can even help us against this new variant?

  • 12

    It's an excellent question, you know, we're not seeing the demand for the booster that high.

  • 13

    So I asked Dr. Fauci, you know how, what do I tell my patients? why should they get this booster if those BA4 BA5 variants are no longer the dominant variants?

  • 14

    And he said cross protection, all that means is these new boosters we have are closer related to these spin-offs and the old vaccines. So if it's a good idea, especially if you didn't have an Omicron infection.

  • 15

    Let's say you got sick. should you still wait to get that booster? and what should people who are immune compromised, what should they know?

  • 16

    if you're immune compromised, I wouldn't wait. If you recovered from an infection, I would get it as soon as you able to, but... - Don't wait for three months, like I used to say.

  • 17

    I wouldn't, but if you're not immune, compromised, you really want to wait three to six months to get the most bang for your buck from that booster?

  • 18

    Which I have to say it sort of begs the question, is this sort of fly in the face of this herd immunity that we all thought was going to be just a silver bullet⁽²⁾ to get us out of this pandemic once and for all.

  • 19

    You know, a little bit, I will say, all the experts I've talked to say this virus isn't going anywhere. We need to learn to live with it this winter, probably the next winter, too.

  • 20

    So, let's take advantage of those tools that we have. - It's starting to feel like the flu all over again. - All right NBC News medical fellow Dr. Akshay Syal thank you so much. - Anytime.

  • 1

    正如他们所说,冬天就要来了,健康专家对一组奥密克戎亚型变异株愈发担心。

  • 2

    是的,这些新毒株能够躲过我们的免疫防御系统,它们对接种过疫苗的人和之前感染过的人都构成了新的威胁。

  • 3

    NBC新闻频道的医学研究员阿克谢·赛尔博士加入我们来帮助我们详细分析。谢谢你来到演播室。

  • 4

    我们来谈谈这些新的变种,它们是奥密克戎毒株的最新变体。关于奥密克戎的这些变异体,如果你愿意这么称呼它们的话,有什么值得我们关注的?我们应该担心什么?

  • 5

    下午好,很高兴来到这里,这些专家向我们描述的是,这是类固醇病毒进化。

  • 6

    我们看到奥密克戎有一些小的变异型。这里有几个问题,第一个是我们将看到病例数在进入秋冬季节时再次上升。

  • 7

    我们关注的另一件事是,我们“工具箱”里的那些工具是否仍然有效?我和福奇博士谈过这件事,他是这么说的。

  • 8

    如果奥密克戎BA.4.6亚变体逃避能免疫系统,而你的免疫系统能去攻击它,这是我们装备中的另一个工具,但对免疫受损的人来说是不可用的。

  • 9

    他所指的是Evusheld,这是一种单克隆抗体,如果你的免疫系统较弱,你可以通过注射来预防感染病毒。

  • 10

    令人担忧的是,这Evusheld可能对这些奥密克戎亚变体不起作用。 - 那这是在疫苗接种之外用的药吗? - 如果你的免疫系统较弱(则建议注射)。

  • 11

    首先,这是对福奇博士的精彩采访。谢谢你告诉我们这些信息,但是,我的意思是,应该让这些加强针体现价值,我意思是,它能帮助我们对抗这种新的变种吗?

  • 12

    这是一个很好的问题,我们没有看到对加强针的需求那么高。

  • 13

    所以我问福奇博士,我该怎么告诉我的病人?如果那些BA4 BA5变异不再是占主导地位的变体,那他们为什么要应用这种加强针?

  • 14

    他说交叉保护,这意味着我们的这些新加强针与这些奥密克戎亚变体和旧疫苗的关系更密切。所以,尤其是如果你没有感染奥密克戎,这或许是个好主意。

  • 15

    假设你感染了。你还应该等着注射加强针吗?免疫力低下的人应该知道些什么?

  • 16

    如果免疫系统受损,我会毫不犹豫(注射加强针)。如果从感染中恢复过来,我也会尽快注射加强针,但是… - 不要像我以前说的那样等三个月。

  • 17

    我不会,但如果你没有免疫力,身体受损,你真的想等三到六个月才要从加强针中得到最大的回报吗?

  • 18

    我不得不说,它回避了一个问题,这是对群体免疫的一种挑战,我们都以为群体免疫是记一良策,能让我们一劳永逸地摆脱这场大流行。

  • 19

    你知道,有那么一点,我得说,所有与我交谈过的专家都说这种病毒不会消失。今年冬天,我们需要学会与它共存,也许明年冬天也一样。

  • 20

    所以,让我们充分利用这些“工具”。 - 感觉好像流感又发作了。 - NBC新闻频道的医学研究员阿克谢·赛尔博士非常感谢你。 - 随时为您效劳。