呼吸道感染的症状大致相似,如发热、鼻塞、咽痛、咳嗽、咳痰、胸痛等,且治疗原则也相近,在对症处理、支持疗法同时,对不同病原菌使用各种抗生素及祛痰镇咳药物。然而引起呼吸道感染的细菌种类是相当多的。有需氧菌、厌氧菌和兼性厌氧菌。它们对人体的致病性也是各不相同的。有的细菌是致病菌,一旦突破了机体的防御功能,经呼吸道飞沫传播,侵入机体即引起疾病,并出现较典型的临 Symptoms of respiratory infections are similar, such as fever, nasal congestion, sore throat, cough, sputum, chest pain, etc., and the treatment principles are similar, symptomatic treatment, supportive therapy at the same time, for different pathogens using a variety of antibiotics and expectorant antitussive drugs . However, the number of bacteria causing respiratory infections is quite high. There aerobic bacteria, anaerobic bacteria and facultative anaerobes. Their pathogenicity to the human body is also different. Some bacteria are pathogens, once the breakthrough in the body’s defensive function, spread by the respiratory droplets, invade the body that cause disease, and the more typical