甲、为什么我们要预防呼吸系传染病呢?因为传染病中传布最广,危害人类最大的就是呼吸系病。因细菌或病毒分布于空气中由呼吸道感染而引起流行的有伤风,流行性感冒、肺炎、白喉、麻疹、猩红热、肺结核、百日咳、流行性腮腺炎、风疹、流行性脑脊髓膜炎、天花、肺鼠疫等病。这些传染病的病原体,都是由呼吸道排出,籍着直接,或间接,接触的方式传染。因在病人咳嗽时打嚏喷、说话时唾液、鼻涕液或 A, why do we want to prevent respiratory infectious diseases? Because the spread of infectious diseases in the most widely spread, endangering humans is the largest respiratory disease. Influenza, influenza, pneumonia, diphtheria, measles, scarlet fever, tuberculosis, whooping cough, mumps, rubella, meningococcal meningitis, smallpox, seborrheic purpura, respiratory tract infection caused by bacteria or viruses distributed in the air, Pneumonic plague and other diseases. The pathogens of these infectious diseases are all excreted by the respiratory tract and transmitted in a direct, indirect or contact manner. Sneeze when the patient cough spray, when speaking, saliva, nasal fluid or