Of the 32 blood group systems, the Rh system is the largest, containing 61 antigens.

在所有的32种血型系统中，Rh血型系统是最大的，包含了61种抗原。

These are your Rhesus, or Rh antigens, named after the species of monkey they were first identified in.

这些是你的 Rh，或 Rh 抗原，以它们首次被发现的猴子物种命名。

Much like A and B, you either have the Rh antigens, in which case you're Rh positive, or your don't, and are Rh negative.

就像 A 和 B 一样，你要么有 Rh 抗原，在这种情况下，你是 Rh 阳性，要么没有，是 Rh 阴性。

And we also check to see the RH factor.

我们还检查 RH 因素。

Interestingly, 99.999 9994 percent of people in the world have blood with Rh antigens on their red blood cells.

有趣的是，世界上99。9999994%的人的血液红细胞上都有Rh抗原。

However, the mother has become sensitized by Rh positive antigens from that first child.

然而，孕产妇已经被来自第一个孩子的Rh阳性抗原致敏。

There are also a lot of medical and scientific words that start with " rh" , for example: rheumatic or rhinoplasty.

还有很多以“rh”开头的医学和科学词汇，例如“rheumatic”或“rhinoplasty”。

Unless the mother is treated with RhoGAM shortly after giving birth, she will begin to form anti-Rh positive antibodies.

除非母亲在分娩后不久接受RhoGAM治疗，否则她将开始形成抗Rh阳性抗体。

And the antigen that causes trouble in pregnancy is the D antigen, also known as the Rh factor.

而在妊娠中引起麻烦的抗原是D抗原，也称为Rh因子。

RhoGAM is an injection given to women who are Rh negative to prevent the formation of antibodies.

RhoGAM是一种注射给Rh阴性的妇女以防止抗体的形成的药剂。

The possible blood types we could have are A, B, AB and O, and each one of these can be either Rh positive or negative.

我们可能拥有的血型是A型、B型、AB型和O型，其中每一种都可能是Rh阳性或阴性。

The Rh factor is important when we learn about the Rh blood group system.

当我们了解Rh血型系统时，Rh因子是很重要的。

As Rhnull blood contains no Rh antigens to be rejected, it can be a universal donor for those with generally rare blood types.

由于Rhnull型的血液不含会被排斥的Rh抗原，它可以为那些拥有罕见血型的人提供通用供体。

The Rh factor is named after the Rhesus monkey, which is the animal where it was first identified.

Rh因子是以恒河猴命名的，恒河猴是最早发现Rh因子的动物。

However, in the Rh blood group system, the antibodies are not automatically produced.

然而，在Rh血型系统中，抗体并不是自动产生的。

In this lesson, we will take a look at the Rh factor and the significant role it can play during pregnancy.

本节课，我们将学习Rh因子及其在怀孕期间的重要作用。

Until then, doctors had assumed that an embryo missing all Rh blood cell antigens would not survive, let alone grow into a normal, thriving adult.

在此之前，医生们一直认为缺少所有Rh血细胞抗原的胚胎无法存活，更不用说成长为一个正常、茁壮的成年人了。

Let's say that she is a pregnant Rh negative woman who is carrying an Rh positive child.

假设她是一个怀孕的Rh阴性妇女，怀着一个Rh阳性的孩子。

This means if you have the Rhnull blood type, receiving a transfusion of a blood type with any Rh antigens will cause your body to reject the blood.

这也就意味着，如果你是Rhnull血型，接受任何带有Rh抗原的血型输血都会导致你的身体排斥这种血液。

That means she will start to form anti-Rh positive antibodies.

这意味着她将开始形成抗Rh阳性抗体。