[Progress in the pathogenesis of post-infectious persistent cough].

Respiratory viral infection is a common cause of acute cough. After the cause has been cleared and the symptoms such as fever, nasal congestion and runny nose have been relieved, some patients still have persistent cough. These phenomena indicate that respiratory viruses may mediate cough hypersensitivity and lead to the occurrence of sub-acute or chronic cough. Cough response to viral infection is a protective strategy to prevent the spread of the viruses from the upper respiratory tract to other sites, but excessive coughing becomes a disease. In this review, we introduced the research progress in the pathophysiological mechanism of post-viral persistent cough or chronic cough.呼吸道病毒感染是急性咳嗽的常见原因。但是在病因清除及发热、鼻塞、流涕等症状缓解后，仍有部分患者存在持续的咳嗽，表明呼吸道病毒可能会介导咳嗽的敏感性增高，导致亚急性或慢性咳嗽的发生。病毒感染后的咳嗽反应是防止病毒从上呼吸道传播到其他部位的保护性策略，但过度咳嗽就成为了一种疾病。本文介绍了呼吸道病毒感染后亚急性或慢性咳嗽发生的病理生理机制，并探讨了相关研究进展。.