1 肺炎及呼吸机能不全 此为麻疹最常见的并发症。由于麻疹病毒入侵机体后首先在呼吸道粘膜内繁殖,便粘膜出现充血、水肿、毛细血管周围单核细胞侵润,严重时上皮细胞可呈退行性变,因此呼吸道病变是首发症状之一。患者常出现咳嗽、胸闷、气喘、气急、病情严重时出现呼吸困难。此时由于疹期全身毒血症状达高峰,中毒症 1 pneumonia and respiratory insufficiency This is the most common complication of measles. As the measles virus invades the body first in the respiratory mucosa breeding, mucosal hyperemia, edema, mononuclear cells around the infiltration, in severe cases, epithelial cells may be degenerative changes, so respiratory disease is one of the first symptoms. Patients often cough, chest tightness, asthma, shortness of breath, severe respiratory problems occur. At this point as a result of systemic rash syphilis reached its peak, poisoning