病毒性出血热并非是一种最近才被认识的疾病,人们所知已有几个世纪的天花、黄热病是最常见的、具出血热表现的病毒性疾病,曾引起无数人发病、千万人死亡。其他许多引起出血热的病毒仅在近30年中被逐步了解,尽管它们常被称为“新的病毒”,但它们可能存在于“无声的”动物流行灶已有许多年,而突然地感染人类。它们的传播途径各不相同:天花是由人之间接触;黄热病 Viral hemorrhagic fever is not a recently recognized disease. It is known that centuries have been smallpox. Yellow fever is the most common viral disease with hemorrhagic fever and has caused numerous diseases. Thousands Ten thousand people died. Many other viruses that cause hemorrhagic fever have been known for only about 30 years and although they are often referred to as “new viruses,” they may have been present in “silent” animal-borne foci for many years and suddenly become infected Humanity. Their route of transmission varies: smallpox is contact between people; yellow fever