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去年11月以来,在我国西北的兰州、东北的阜新和鸡西等矿区,先后暴发了一种以青壮年为主的非菌性急性腹泻,其传染性极强;以腹泻,肠鸣,腹痛为主要症状,绝大多数病人无热或仅低热;受染者达数万人,严重威胁矿工的健康,煤炭生产受到很大损失。我们在进行防治和流行病学调查的同时,进行了病原学研究。将42例上述患者大便和9例正常人大便进行了常规电镜和免疫电镜观察,结果在患者标本中发现了一种大小约52nm的小圆病毒颗粒,检出率达80％;此种病毒颗粒具有特定的形态和结构,分实心和空心两种,
Since November last year, in non-bacterial acute diarrhea areas such as Lanzhou in the northwest of China, Fuxin and Jixi in northeast China, non-bacterial acute diarrhea mainly outbreaks of young adults have successively been reported, which are extremely contagious; with diarrhea, bowel and abdominal pain as The main symptoms, the vast majority of patients without heat or fever only; affected tens of thousands of people, a serious threat to the health of miners, coal production suffered great losses. At the same time that we conducted prevention and epidemiological investigations, we conducted an etiological study. 42 cases of the above patients stool and 9 cases of normal stool were observed by conventional electron microscopy and immunoelectron microscopy, the results of the patient specimens found a size of about 52nm small circular virus particles, the detection rate of 80%; the virus particles Has a specific shape and structure, divided into solid and hollow two,