最大限制的进行保护，因为容易传播性传染疾病。
Protection is of the utmost importance, as STIs can easily be transmitted.
例如，一个人打电话举报一些突发的窒息性传染病。
For example, one person called to report the outbreak of a contagious disease that constricts breathing.
在人口中快速传播的疾病称为流行性传染疾病。
The rapid spread of a disease throughout a population is an epidemic.
今年世界卫生组织宣布H1N1型流感为全球性传染病。
The World Health Organization this year declared H1N1 a global epidemic.
许多染上性传染病的人实际上并不知道他们已经感染了。
Many people who have STDs don't actually know they're infected.
这证实了之前的调查，该调查说长胖可能是社会性传染的。
This confirms previous research that gaining weight may be socially contagious.
但近二十年来，由于血源性传染疾病的威胁，给临床输血带来极大的困难。
But nearly twenty years, the risk of transmission of infection in transfused blood brought much trouble on transfusion.
这一点非常重要，和你们在固定时间去医院检察有没有得疱疹或其他性传染疾病是一样的。
It is just as important that you and your partner are routinely checked for herpes or any STD for that matter.
然而2007年发表于《新英格兰医学杂志》的另一项研究却发现，肥胖会在家庭和朋友中社会性传染。
Another study published by the New England Journal of Medicine in 2007 found that obesity may be socially contagious among family and friends.
此外，露宿还可遭到一些昆虫(如蚊虫等)的叮咬，会感染一些血源性传染疾病，如疟疾、乙脑、丝虫病等疾病。
In addition, sleep can also by some insects (eg mosquito) bites, can infect a number of blood-borne infectious diseases such as malaria, encephalitis, filariasis and other diseases.
在过去的二十年里，贫困国家的结核病甚至死灰复燃——尤其是免疫系统遭人类免疫缺陷病毒(HIV)破坏者的机会性传染。
Indeed, the past two decades have seen TB's resurgence in poor countries-in particular as an opportunistic infection in those whose immune systems have been damaged by HIV.
肺结核作为一种接触性传染疾病，主要影响肺部功能的正常使用。但是同样可以扩散到身体的其他部位，造成影响。
Tuberculosis is a contagious infection that mainly affects the lungs, but can spread to other parts of the body.
流感的传染性很高。
猩红热的接触传染性很强。
一种传染性面部癌症正在塔斯马尼亚袋獾中迅速蔓延。
An infectious facial cancer is spreading rapidly among Tasmanian devils.
传染的可能性微乎其微。
这种病毒传染性很强。
我们造成了混乱，而今天的错误具有高度传染性。
We have made this mess, and mistakes today are highly contagious.
麻风的传染性不很强。
首先，这是一种传染性极强的病毒。
肺感染依然是唯一主要的传染性死亡原因。
Lung infection remains the only leading infectious cause of death.
在你感染猪流感的早期阶段你有最大传染性。
You'll be at your most infectious in the early stages of your illness.
笑具有传染性：这并非信口胡说：科学家说，笑容确实可以传染。
Smiles are contagious: It’s not just a saying: smiling really is contagious, scientists say.
尼帕病毒在猪群中具有高传染性。
它们都具有很高的传染性；并且可以使人体产生各种症状，从而确保其传染性的传播。
They are highly contagious; the virus causes the body to produce symptoms which ensure the spread of the contagion.
它有传染性，传播飞快，几乎是无法消灭的。
It was infectious. It was driven. It was nearly impossible to kill.
答：麻疹是一种传染性很强的疾病。
答：麻疹是一种传染性很强的疾病。
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