单词natural immunity
un.: 天然免疫性；自然免疫性
网络: 自然免疫力；先天免疫；先天免疫力
自然免疫性
天然免疫性
As people would have no natural immunity, a new influenza virus could cause widespread death, illness, social and economic disruption.
由于人无天然的免疫力，一种新的流感病毒可引起广泛的死亡、疾病、社会和经济破坏。
Swine flu is a mix of pig, bird and human genes to which people have limited natural immunity.
新的猪流感病毒是以往猪，禽和人流感病毒的混合体，人们对其缺乏天然免疫力。
Humans have had no opportunity to develop a natural immunity.
人类无机会形成自然免疫力。
That"s how many past pandemic viruses, including 2009 H1N1, were created, leading to new strains to which humans have no natural immunity.
这也是过去很多大流行性流感病毒的来源，包括2009年的H1N1。很多人类没有自然免疫力的新菌株将会因此出现。
Scientists explore the mystery of natural immunity and whether it could be a key to an aids vaccine.
科学家如何探索疾病的谜团和免疫史看看能否找到爱滋病疫苗的关键。
Our position is if you feed your dog a healthy all-natural diet his natural immunity will handle almost anything that he runs into.
我们的观点是，如果用健康的纯天然食物喂养狗儿，那么它们自身的免疫力将可以应付任何情况。
Scientists are studying why some individuals have natural immunity to the disease.
科学家们在研究为什么一些人对这种病有自然的免疫力。
When new influenza viruses are introduced into the environment, humans do not have any natural immunity to protect against them.
当新型流感病毒进入到环境中以后，人类对它们没有任何自然抵抗力。
Boost your natural immunity with foods that are rich in Vitamin C (Amlaand other citrus fruits).
更多的食用富含维生素C的食物，比如柑橘类水果，可增加人体免疫力。
Some people were born without CCR5 gene, thus having natural immunity against AIDS.
有些人天生就不具有CCR5基因，他们对艾滋病有天然的免疫力。