建国以来我国对几种恶性传染病进行了认真的普查和防治,如伤寒、鼠疫、梅毒、霍乱……等等。多年来这些特级、甲级传染病可以说是绝迹了。可是近几年一些地方又时而发生。特别是梅毒在南方、在北方的大城市又相继出现。已经绝迹的传染病为什么又出现了呢?它给我们传递一个信息:卫生防疫工作薄弱了。防疫措施、防治药品也出现了一缺二少。狂犬疫苗、伤寒疫苗、鼠疫疫苗都很难买到。去年,上海流 Since the founding of our country, several serious infectious diseases have been seriously investigated and controlled, such as typhoid fever, plague, syphilis and cholera ... and so on. Over the years, these premium, Class A infectious diseases can be said to be extinct. But in recent years some places happen again and again. In particular, syphilis is in the south and large cities in the north appear one after another. Why is the contagious disease that has disappeared again? It sends us a message: health and epidemic prevention is weak. Preventive measures, prevention and treatment of drugs also appeared in one missing two less. Rabies vaccine, typhoid vaccine, plague vaccine are difficult to buy. Last year, Shanghai flow