传染病是一类比较特殊的疾病,它与一般疾病相比,具有一些独特的地方,这就是传染病的基本特征。一、有病原体每一种传染病都有自己独特的病原体。病原体是指能引起疾病的微生物与寄生虫,如细菌、病毒、真菌、支原体、衣原体、蛔虫、蛲虫等等。在各种传染病中,以细菌和病毒感染最多见。如常见的致病细菌有伤寒杆菌、痢疾杆菌、脑膜炎球菌、白喉杆菌、百日咳杆菌等;常见的致病性病毒有麻疹病毒、乙脑病毒、肝炎病毒、脊髓灰质炎病毒、狂犬病毒、艾 Infectious diseases are a relatively special category of diseases. They have some unique features in comparison with common diseases. This is a basic feature of infectious diseases. First, there are pathogens Each infectious disease has its own unique pathogen. Pathogens are microorganisms and parasites that cause disease, such as bacteria, viruses, fungi, mycoplasmas, chlamydia, roundworms, pinworms and the like. In a variety of infectious diseases, the most common bacterial and viral infections. Such as common pathogenic bacteria Salmonella typhi, Shigella, meningococci, diphtheria bacillus, Bordetella pertussis; common pathogenic virus measles virus, Japanese encephalitis virus, hepatitis virus, polio virus, rabies virus, Ai