Today, we'll look at how new Omicron subvariants are already increasing cases and hospitalizations…

今天，我们要看看奥密克戎新的亚变种已经令新冠病例数和重症数上升。

XBB could cause diarrhea, but it is not any worse than other Omicron subvariants.

XBB 可能导致腹泻，但它并不比其他奥密克戎亚型严重。

Do we know if these subvariants are causing more severe disease?

我们是否知道这些亚株会引发大量重症？

This time, it's driven by the Omicron subvariants BA. 5 and BA. 4.

这次的罪魁祸首是奥密克戎亚变种 BA. 5 和 BA. 4。

And its booster dose showed a good neutralization effect against Omicron subvariants in clinical trials.

在临床试验中，其加强针对奥密克戎亚型表现出良好的中和作用。

Now, the subvariants are already dominant in some other countries.

现在这两种亚株已经成为一些别国的主导毒株。

The dominant subvariants in China remain the BA.5.2 and BF.7, according to the statistics in December 2022.

根据 2022 年 12 月的统计数据，中国占主导地位的亚型仍然是 BA.5.2 和 BF.7。

The FDA wanted boosters that are more likely to produce antibodies that neutralize the subvariants.

FDA 想要加强针更可能产生抗体来中和这些亚变种。

XBB has two subvariants, XBB.1 and XBB.1.5, which have been rapidly spreading in Europe and the United States.

XBB 有两个变种，XBB.1 和 XBB.1.5，它们已经在欧洲和美国迅速传播。

Today, we're going to discuss the new alphabet soup of variants and subvariants likely to be around this winter…

今天，我们要讨论今年冬天可能会活跃的新变异株和亚变异株的一大堆缩写。

Though the XBB.1.5 has become the dominant sublineage in some countries, the symptoms it caused are no severer than other Omicron subvariants.

尽管 XBB.1.5 已经成为一些国家的主要传播的亚种，但它引起的症状并不比其他奥密克戎亚型严重。

The subvariants are just different enough from their ancestor to evade an Omicron-prompted immune response.

亚变种与其祖先之间存在足够多的差异，以至于能条例奥密克戎引起的免疫应答。

Fischman: The FDA wanted boosters that are more likely to produce antibodies that neutralize the subvariants.

Fischman：FDA希望加强剂更有可能产生中和亚变异体的抗体。

Well, possibly, unless vaccine makers can develop new booster shots that target Omicron's subvariants.

有可能，除非疫苗制造商能研发出针对奥密克戎亚株的新加强针。

Although no completely new variants of the COVID virus have emerged yet, there are several new Omicron subvariants.

尽管目前还没有出现新冠病毒的全新变异，但现在还存在奥密克戎几种新亚变异。

Possibly, unle-ss vaccine makers can develop new booster shots that target Omicron's subvariants.

刘易斯：有可能，除非疫苗制造商能够开发出针对 Omicron 亚变体的新加强针。

Because it looks like boosters using BA. 4 and 5 will protect people better, since those subvariants are the ones dominating new infections right now.

因为使用 BA. 4 和 BA. 5 的加强针会为人群提供更强保护力，因为这些亚变种是目前新感染的主导。

But the FDA, and its vaccine advisory committee, just said that new boosters should be built around the new subvariants: BA. 4 and BA. 5.

但 FDA 及其疫苗咨询委员会称新加强针应该围绕新亚种即 BA. 4 和 BA. 5 来研制。

People who had the original Omicron variant, BA. 1, seem to have a higher rate of reinfection with these newer Omicron subvariants, compared to those infected with previous variants.

对比感染过旧变异株的人，感染过初代奥密克戎变异株 BA.1 的人，被新奥密克戎新亚株感染的几率更高。

And they add in material from the new subvariants, basically teaching your immune system to respond to a wider spectrum of virus versions.

他们添加了来自新亚变体的材料，基本上教会你的免疫系统对更广泛的病毒版本做出反应。