The new shots are called " bivalent."

这些新疫苗被称为二价疫苗。

The paired chromosomes are called bivalent or tetrad chromosomes.

成对的染色体称为二价体（也称为四分体）。

Bivalent vaccines have advantages over the original vaccines as they both top up and broaden our immunity.

二价疫苗比原始疫苗有优势，因为它们都能增强和扩大我们的免疫力。

However, the homologous chromosomes of each bivalent remain tightly bound at chiasmata, the regions where crossing-over occurred.

然而，每个二价体的同源染色体仍然紧密结合交叉部位，也就是发交叉的区域。

Health officials in Britain and other European countries also offered " bivalent" shots to target different versions of the virus.

英国和其他欧洲国家的卫官员也提供针对不同版本病毒的二价疫苗。

I know we have the bivalent available now.

我知道我们现有二价的。

So you can go, okay, bivalent means with two things, okay, got it.

所以你可以走，好吧，二价意味着两件事，好吧，明白。

Monovalent and bivalent OPVs respectively contain one or two types of attenuated poliovirus, reducing the number of strains that could possibly mutate.

一价和二价口服脊髓灰质炎疫苗分别含有一种或两种减毒脊髓灰质炎病毒，减少可能发突变的毒株数量。

I plan to get my updated BA.4-5 bivalent at the end of September, the first week in October.

我 9 月底，即 10 月的第一个星期，获得我更新的 BA.4-5 双价。

So it'll tell you today's word is bivalent, and it'll explain it, and just that's the word of the day.

所以它会告诉你今天的词是二价的，它会解释它，这就是今天的词。

The paired and replicated chromosomes are called bivalents or tetrads, which have two chromosomes and four chromatids, with one chromosome coming from each parent.

配对和复制的染色体被称为二价体（也称为四分体），它们有两条染色体和四个染色单体，每个亲本都有一条染色体。

So if I got my last shot, let's say in July -- August, September, two months later, you should get the bivalent.

因此，如果我最后一次注射疫苗，比如说 7 月、8 月、9 月，两个月后，你应该注射二价疫苗。

The new bivalent booster vaccines for Covid are available now, but the path to making these ready for adults earlier this month wasn't easy.

新的 Covid 双价加强疫苗现已上市，但本月早些时候为成年人准备这些疫苗并不容易。

In the early 2000s, vaccines known as bivalent oral vaccines were developed to target only PV1 and PV3 because of the drop in circulation of the PV2 strain.

21 世纪初，由于 PV2 毒株的传播减少，开发仅针对 PV1 和 PV3 的二价口服疫苗。

This is because the federal government has purchased nearly two billion doses of COVID vaccines and 171 million bivalent boosters—the ones formulated to cover Omicron strains.

这是因为联邦政府已经购买近 20 亿剂 COVID 疫苗和 1.71 亿剂二价加强剂——这些疫苗是为覆盖 Omicron 毒株而配制的。

The administration, they've had to borrow, beg and steal money from different programmes to actually be able to purchase the new bivalent boosters from Pfizer and Moderna.

政府， 他们不得不从不同的项目中借钱、乞讨和窃取资金， 才能真正从辉瑞和 Moderna 购买新的二价助推器。

The new bivalent booster protects you against both the original SARS-CoV-2 strain and Omicron's BA. 4 and BA. 5 subvariants, and it's likely to provide some protection against the newer variants too.

新的二价加强针能防护新冠原始毒株和奥密克戎 BQ. 4 和 BQ. 5 的亚变异株，而对于更新的变异，它也可能提供某些防护。

The autumn Covid-19 booster shots we have just been offered are one such example – these bivalent vaccines target the original strain of Sars-CoV-2 (the virus that causes Covid-19) alongside the Omicron variant.

我们刚刚获得的秋季新冠加强疫苗就是这样一个例子——这些双价疫苗针对的是 Sars-CoV-2 的原始毒株（导致新冠的病毒）和奥密克戎变种。

So right now, if you're asking a clear question, of today, with the bivalent BA.4-5 boosters or updated vaccines is a better terminology to use, they are available now throughout the country.

所以现，如果你问的是一个明确的问题，今天，二价 BA.4-5 加强剂或更新疫苗是一个更好用的术语，它们现全国都有售。

Just 15% of people in the U.S. ages 5 and older have gotten a bivalent booster, according to the CDC, which means many people are currently not as protected as they could be against the new variant.

根据美国疾病控制与预防中心的数据，美国5岁及以上的人群中，只有15%的人接种二价疫苗，这意味着许多人目前对这种新变体的保护程度没有达到应有的水平。