全球范围内,社区获得性肺炎(CAP)的病原体构成和耐药性存在地域性差异。大量国外研究显示,肺炎链球菌是CAP的最主要病原体,而与国外不同,在我国已经完成的两项全国多中心成人CAP调查中,肺炎支原体感染的比例却分别达到了20.7%和38.9%,已经超过了肺炎链球菌(分离率分别为10.3%和14.8%),成为成人CAP最常见的致病原[1-2]。临床上用于治疗肺炎支原体感染的药物主要包括 Globally, there is a regional difference in the composition and drug resistance of CAP in community-acquired pneumonia (CAP). A large number of foreign studies have shown that Streptococcus pneumoniae is the most important causative agent of CAP. However, unlike other countries, the proportion of Mycoplasma pneumoniae in two national multi-center adult CAP surveys has reached 20.7% and 38.9% respectively. Has surpassed S. pneumoniae (separation rates of 10.3% and 14.8%, respectively) and has become the most common causative agent of adult CAP [1-2]. Clinically used to treat Mycoplasma pneumoniae infection of drugs mainly include