当它们感染生物膜表层的细菌后，它们会迅速繁殖，胀爆细菌，释放出新的病毒，感染下层的细菌，很快即使是在最深层的细菌也会被感染。
When it infects the bacteria on the biofilm's surface, they burst and release viruses that infect those underneath, soon exposing even deeply embedded bacteria to infection.
你的大脑同样也会释放出某种叫做伽马球蛋白的物质来加强你的免疫系统和另一种被称为干扰素的化学物质来与病毒，感染乃至癌症做斗争。
Your brain also releases something called Gamma Globulin to strengthen your immune system and another chemical called Interferon which combats viruses, infections and even cancer.
当你的身体这样做时，流感病毒会快速复制并释放出毒素，使你感觉不舒服。
While your body is doing this, the flu virus multiplies quickly and releases toxins which makes you feel ill.
不过他们猜测原因可能是：睡眠不良会影响人体对促炎细胞因子、组胺和其他为应对病毒感染而释放的症状调节因子的调节。
But they do take a stab at the answer: 'Sleep disturbance influences the regulation of proinflammatory cytokines, histamines, and other symptom mediators that are released in response to infection.'
这种油状物质在进入呼吸道后才会融化，病毒被释放后即会感染细胞。科学家称这一过程如同M&M巧克力豆在嘴里融化。
The butter-like material only melts when it hits the respiratory tract, leaving the virus free to infect cells - a process scientists say is like an M&M melting in the mouth.
这种油状物质在进入呼吸道后才会融化，病毒被释放后即会感染细胞。科学家称这一过程如同M&M巧克力豆在嘴里融化。
The butter-like material only melts when it hits the respiratory tract, leaving the virus free to infect cells - a process scientists say is like an M&M melting in the mouth.
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