论文部分内容阅读
本文报告了1995.5～1996.4对山东费县秋冬型恙虫病疫源地宿主动物和恙螨的调查结果。全年共捕获鼠形动物993只,隶属2目3科5属6种,其中黑线姬鼠占72.81％,为该疫源地的优势鼠种,鼠密度总曲线有2个高峰,前峰在7月份,后峰在10月份。共收集恙螨9334只,隶属1科2属5种,恙螨指数总曲线里双峰型,前峰在8月份,后峰在11月。不同季节优势螨种不同。须纤恙螨在秋季和冬季(10月～翌年4月)出现,高峰在12月,恙螨指数为15.53,占该月恙螨总数的94.72％,且1～3月份收集到的恙螨均为须纤恙螨;临淮岗纤恙螨主要出现在5～11月,高峰期在8月,是夏季优势螨种;小盾纤恙螨主要出现在秋冬季(9～12月),高峰期在11月,恙螨指数为36.56,占该月份恙螨总数的81.64％。上述3种恙螨均无宿主特异性。大仓鼠带螨种类最多6种。本文结果提示,该恙虫病疫源地最重要的宿主动物是黑线姬鼠,同时大仓鼠亦是重要的宿主动物;恙虫病立克次体(Rt)的传播媒介除小盾纤恙螨外,须纤恙螨、临淮岗纤恙螨、太平洋无前恙螨在Rt从恙螨→啮齿动物或恙螨到人的传播过程中是否起着媒介作用值得进一步深入研究。
This article reports the survey results of host animals and chigger mites in the autumn-winter type of tsutsugamushi disease in Feixian County, Shandong Province, from May 1995 to May 1996. A total of 993 mouse-shaped animals were captured in the year, belonging to 2 orders, 3 families and 5 genera and 6 species, of which Apodemus agrarius accounted for 72.81%, which was the dominant species in the epidemic area. There were 2 peaks in the total density curve of the former peak In July, after the peak in October. A total of 9334 chigger mites were collected, belonging to 5 species of 2 genera in 1 family. The total curve of chigger mite index was bimodal, with the former peak in August and the latter peak in November. Different seasons different species of mites. Siberian mites should appear in autumn and winter (from October to April next year). The peak was in December and the index of chigger mite was 15.53, accounting for 94.72% of the total number of chigger mites in the month. The number of chigger mites collected from January to March For the need to be chigger mites; Linfenghigang chigger mites occur mainly in May to November, the peak in August, summer is the dominant species of mites; small shield fiber chiggers mainly appear in autumn and winter (September to December), the peak In November, the chigger mite index was 36.56, accounting for 81.64% of the total number of chigger mites in the month. None of these 3 chigger mites are host specific. Hamster with a maximum of 6 species of mites. The results suggest that the most important host animal of the tsutsugamushi disease is Apodemus agrarius, while large hamsters are also important host animals; Rickettsia tsutsugamushi Rickettsia (Rt) of the media in addition to the small shield mite , To be chigger mites, Lin Huigang chigger mites, Pacific chigger mite in Rt from chigger to rodent or chigger mites to the spread of human beings plays a mediator role worth further study.