If an infection invades the body, the immune system attacks it.

如果感染侵入身体，免疫系统就会攻击它。

Often, the human immune system attacks the foreign tissue.

通常，人体免疫系统会攻击外来组织。

That may stop the immune system attacking such grafts as foreign objects.

这可能会阻止免疫系统将这些移植物当作异物来攻击。

First, they thought it could be the immune system attacking the melanocyte stem cell population.

他们一开始认为可能是免疫系统攻击黑色素细胞干细胞群。

This is because the immune system attacks your gums and teeth in response to the bacteria build up.

这是因为免疫系统会攻击你的牙龈和牙齿，以应对细菌的积累。

Tragically, the immune system’s attack can even be life-threatening.

可悲的是， 免疫系统的攻击甚至可能危及生命。

The immune system attacks healthy cells in the circulatory system and destroys them.

免疫系统攻击并杀死 循环系统中的健康细胞。

If you have a fever, or feel sore and achy, that's a side-effect of your immune system attacking an infection.

如果您发烧或感到酸痛，这是免疫系统攻击感染的副作用。

With these conditions, the body's immune system attacks its own cells, a process analogous to a constant asthma attack or rash.

在这些情况下， 身体的免疫系统会攻击自己的细胞，这个过程类似于持续的哮喘发作或皮疹。

Pericarditis can also be seen in autoimmune diseases, like rheumatoid arthritis, scleroderma, or systemic lupus erythematosus, because the immune system attacks its own tissues, including the pericardium.

心包炎也可继发于自身免疫病，如类风湿性关节炎、硬皮病或系统性红斑狼疮；此时免疫系统攻击包括心包在内的自身组织。

This happens when, in a phenomenon called autoimmunity, the body's own immune system attacks its complement of beta cells, wiping out as many as 80%.

这种现象称为自身免疫，即人体自身的免疫系统攻击其β细胞补体，消灭多达 80% 的β细胞。

New research provides the first evidence that the Zika virus may cause Guillain-Barre syndrome, a serious illness that leads to the body's immune system attacking the nervous system.

研究首次证实寨卡病毒或引发格林-巴利综合征，它是一种神经系统自身免疫性疾病。

MS occurs when a patient's immune system attacks their myelin, the fatty tissue that insulates the nerve cells of their brain and spinal cord and which enables those cells to pass on electrical signals.

当患者的免疫系统攻击其髓鞘（一种隔离大脑和脊髓神经细胞并使这些细胞能够传递电信号的脂肪组织）时，就会发生 MS。

In 2022 scientists identified the reason why the immune system attacked myelin in people with MS: Epstein-Barr virus (EBV), the cause of mononucleosis or glandular fever (also known as the " kissing disease" ).

2022 年， 科学家发现了免疫系统攻击 MS 患者髓鞘的原因：爱泼斯坦-巴尔病毒 (EBV)，它是单核细胞增多症或腺热（也称为“接吻病” ）的病因。