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传染病学与临床其它学科一样也在不断变化。对某些过去未被发现的病原微生物及其所致的疾病,近年来陆续被认识,因而扩大了传染病学的范围。现就一些新发现的病原和疾病简介于下。一、Norwalk 因子与病毒性胃肠炎Norwalk 是美国的一个地名,1968年该地某小学暴发了一种以呕吐为主要症状的胃肠炎,患者粪便滤过液能引起志愿者感染,说明有传染因子存在,被命名为 Norwalk 因子。1971年后,在英美等国的一些家
Epidemiology is just as constantly changing as any other clinical subject. For some undiscovered pathogenic microorganisms and their consequent diseases, they have been recognized in recent years, thus expanding the scope of epidemiology. Now on some newly discovered pathogens and diseases brief below. First, the Norwalk factor and viral gastroenteritis Norwalk is a place name in the United States, a primary school in 1968 outbreak of a vomiting as the main symptom of gastroenteritis, the patient fecal filtrate can cause infection in volunteers, indicating that there is The infectious agent exists and is named Norwalk Factor. After 1971, some homes in Britain and the United States