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肺炎球菌是能够导致肺炎的最常见细菌之一,只有通过放大1000倍的显微镜才能观察到。它呈小球状,能够寄生在鼻道、口腔及喉部。在一般情况下,喉部的涎液、鼻腔和气道内的微毛以及咳嗽都可以阻止肺炎球菌进入肺内,但并不是总能成功。肺炎是对人类生命威胁最大的传染病。它和流行性感冒列为美国主要死因的第6位。儿童及年老体弱者都是肺炎攻击的对象。在美国,肺炎每年发病约400万例,使100万以上的人住院,76000多人死亡。 在寒冬的一个早晨,40岁的特里·斯坦利醒来时感觉轻微的头
Pneumococci are one of the most common bacteria that can cause pneumonia and can only be observed with a microscope magnified 1000 times. It is pellet-shaped and can parasitize nasal passages, mouth and throat. Under normal circumstances, salivation in the larynx, nasal and airway micro-hair and cough can prevent pneumococcal into the lungs, but not always successful. Pneumonia is the most dangerous infectious disease to human life. It ranks as the sixth leading cause of death in the United States with influenza. Children and infirm are the target of pneumonia attacks. In the United States, there are about 4 million cases of pneumonia each year, leaving more than 1 million people hospitalized and more than 76,000 people killed. One winter morning, Terry Stanley, 40, woke up feeling a slight head