先天性心脏病(简称先心病)患儿易感染呼吸道疾病,即使开始是上呼吸道感染也很容易蔓延到下呼吸道,随之使心脏病恶化,最后多发生心力衰竭。病原体方面有感冒病毒、溶血性链球菌、金黄色葡萄球菌,流行性感冒(简称流感)杆菌和其它革兰氏阴性杆菌等,种类甚多。列为预防注射对象的疾病如麻 Congenital heart disease (referred to as congenital heart disease) in children susceptible to respiratory disease, even if the beginning of upper respiratory tract infection can easily spread to the lower respiratory tract, followed by deterioration of heart disease, and finally the occurrence of heart failure. There are many kinds of pathogens, such as cold virus, hemolytic streptococcus, Staphylococcus aureus, influenza and other Gram-negative bacilli. Diseases such as hemp listed as a target of prophylaxis