Infectious bronchitis may also be caused by bacteria. Often bacterial bronchitis follows a viral upper respiratory infection.
感染性支气管炎，也是由细菌引起，细菌性支气管炎常伴发病毒性上呼吸道感染。
Theory Background: Acute viral upper respiratory infection is a most common clinic infective disease, and about 70%-80% of it is caused by virus.
理论背景急性上呼吸道感染是临床最常见的一种感染性疾病，约有70% - 80%由病毒引起。
Theory Background: the high fever originated from viral upper respiratory infection is one of the most familiar emergency cases in internal medicine; of which 70%-80% is caused by the virus infection.
研究背景：急性上呼吸道感染所引起的发热是内科最常见急症之一，70% - 80%是由病毒感染引起。
Acute laryngitis is caused by a viral infection, usually linked to the common cold or an upper respiratory infection.
急性喉炎是所造成的病毒感染，通常是联系在一起的普通感冒或上呼吸道感染。
AIM: to evaluate the therapeutic effects and safety of ribavirin glucose injection and ribavirin (Virazole) injection in the treatment of acute viral upper respiratory tract infection.
目的：评价利巴韦林葡萄糖注射液对急性病毒性上呼吸道感染的疗效及安全性并与利巴韦林注射液进行比较。
Objective To investigate the pathogens of acute upper respiratory viral infection in children.
目的了解当前小儿急性呼吸道病毒感染病原学的状况。
Acute viral infection of the upper or lower respiratory tract.
一种上呼吸道或下呼吸道的急性病毒感染。
Viral laryngitis is contagious as contagious, in fact, as a typical upper respiratory infection, Hogikyan says.
Hogikyan说，实际上，病毒性咽炎具有典型上呼吸道传染病的传染性。
Viral laryngitis is contagious as contagious, in fact, as a typical upper respiratory infection, Hogikyan says.
Hogikyan说，实际上，病毒性咽炎具有典型上呼吸道传染病的传染性。
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