论文部分内容阅读
1990年12月11日～31日,对云南省耿马县首次鼠疫流行进行了现场调查。用血清学及细菌学方法在33个疫点(180km~2)检出了63例腺鼠疫患者和13例隐性感染者,并从人,鼠、蚤分离到49株鼠疫菌。造成鼠间鼠疫流行,主要是黄胸鼠数量及印鼠客蚤指数的急骤增高;人间鼠疫是由于鼠间鼠疫长期流行,地面游离蚤增加,人与蚤类接触频繁所致。结果表明:耿马县以勐撒镇为中心的鼠间及人间鼠疫大面积流行是一次典型的家鼠型鼠疫,其疫源地具有西南山地黄胸鼠鼠疫疫源地的特征。鼠疫在该县(至少在动物间)有可能长期存在。
From December 11 to December 31, 1990, a field investigation was conducted on the first plague epidemic in Gengma County, Yunnan Province. Sixty-three Yersinia pestis and 13 Hidden infections were detected by serological and bacteriological methods in 33 outbreaks (180km ~ 2). Yersinia pestis was also isolated from humans, rats and fleas. Resulting in the prevalence of plague in rats, mainly the number of Rattus flavipectus and the rapid increase of Rattus norvegicus; the human plague is due to the long-term epidemic of plague in the rats and the increase of free fleas on the ground and the frequent contact between humans and fleas. The results showed that the prevalence of plague in rats and in human beings centered in Mengsan County was a typical domestic mouse-type plague. Its foci were characterized by plague foci in the southwest of mountainous area. Plague can last long in the county (at least in animals).