白喉流行在秋冬和初春的季节，尤其在冬季其病率最高。少年儿童最容患此病症的。所以，在冬季里，对于儿重的保健方面我们要特别注意到白喉。白喉是由白喉杆菌传染而来的，如和正在病中的白喉患者或带菌者（白喉病后或健康人本身不生白喉而带有白喉杆菌者）接吻，或在咳嗽打嚏时，细菌随口沫喷出，健康人从口鼻吸入而传染得白喉。倘若母亲是带菌者，往往和孩儿口对口喂饭，细菌亦可从母亲口里传入 Diphtheria is prevalent in autumn and winter and early spring, especially in winter. Children and children most suffer from this condition. Therefore, in the winter, we must pay special attention to diphtheria for serious health care. Diphtheria is transmitted by diphtheria bacilli, such as kissing patients with diphtheria or carriers (diseases with diphtheria or diphtheria after diphtheria or diphtheria), or when the patient is coughing and snoring. Mo was spurted, and healthy people inhaled from mouth and nose and transmitted diphtheria. If the mother is a carrier, she often feeds her baby, and bacteria can also be transmitted from her mother’s mouth.