呼吸器官疾病中以感染最为常见。近年来较过去相比较,呼吸器官感染有显著变迁,这种变化的原因主要是由于社会高龄化、抗菌药、抗癌药及糖皮质激素药物的应用等原因促成的。病毒感染在急性呼吸道感染中是最常见的因素,约占90％。随着病毒学研究的进展,人们对病毒性疾病的认识也在逐步深入。1940年以前仅知有36种病毒能使人 Infectious diseases are the most common respiratory diseases. In recent years, compared with the past, respiratory infections have significantly changed, the reason for this change is mainly due to social aging, antibacterial drugs, anticancer drugs and glucocorticoid drugs and other reasons contributed to. Virus infection is the most common factor in acute respiratory infections, accounting for about 90%. With the progress of virological research, people’s awareness of viral diseases is gradually deepening. Only known before 1940, 36 kinds of viruses can make people