严重感染的树木应该被砍掉并焚烧。
民众感染这种疾病的概率为60%。
There is a 60% probability that the population will be infected with the disease.
笑是最具感染力的感情表达方式之一。
Laughter is one of the most infectious expressions of emotion.
这种药物将会对成千上万感染者有用。
The drug will be useful to hundreds of thousands of infected people.
受感染的细胞接着转移到身体的其他部位。
她为持续不愈的眼部感染定期服用抗生素。
She was on antibiotics for an eye infection that wouldn't go away.
长期服用某些药物可能会增加受感染的几率。
Taking long-term courses of certain medicines may increase vulnerability to infection.
保持清洁有助于最大限度地减少感染的危险。
感染更有可能发生在那些营养不良的人身上。
Infections are more likely in those suffering from malnutrition.
她做的每件事都散发出一种有感染力的热情。
She radiates an infectious enthusiasm for everything she does.
感染的其中一个长期后果是使心脏的一个瓣膜受损。
One of the long-lasting effects of the infection is damage to a valve in the heart.
这些症状也许是由病毒感染引起的，而与寄生虫无关。
These symptoms may be referable to virus infection rather than parasites.
不幸的是，这些药毒性很大，妨碍身体抗感染的能力。
Unfortunately these drugs are quite toxic and hinder the body's ability to fight off infection.
该病毒实际上能破坏那些白血球，使身体极易受到其他感染。
The virus can actually destroy those white blood cells, leaving the body wide open to attack from other infections.
从感染艾滋病病毒到发展成为艾滋病病人有一定的时间间隔。
There's a time lag between infection with HIV and developing AIDS.
这些实验中所用的猴子事先都已接种了由死亡的被感染细胞制成的疫苗。
The monkeys used in those experiments had previously been immunized with a vaccine made from killed infected cells.
生物医学研究将使许多感染艾滋病病毒的人们能够活得时间更长、更舒适。
Biomedical research will enable many individuals infected with HIV to live longer, more comfortable lives.
到目前为止，科学家们几乎没有该药物在防止更严重的感染后果的功能的明确证据。
Until now scientists had very little clear evidence about the drug's role in preventing more serious effects of infection.
这会加重感染，使治疗更加困难。
只要吸入病原体，你就会被感染。
It first infects you because you breathe in some of the infectious agents.
许多感染已经无法治愈。
因此，发烧会使感染细菌更难获得铁，从而更难繁殖。
Thus, fever would make it more difficult for an infecting bacterium to acquire iron and thus to multiply.
人们早就知道，在感染期间，动物的血清铁水平会下降。
It has long been known that the level of serum iron in animals falls during infection.
这种病感染了足足30%的人口。
受感染的皮肤会变红，并可能起水疱。
他因一次输血感染了艾滋病。
尽量表现出热情（热情具有感染力）！
Try to be as enthusiastic as possible (enthusiasm is catching)!
传染病的感染途径有几种。
传染病的感染途径有几种。
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