危地马拉盘尾丝虫微丝蚴皮肤密度及蚋属叮咬活动的季节性变化。

Seasonal variation in the microfilarial skin density of Onchocerca volvulus and in the biting activity of Simulium spp. in Guatemala.

作者信息

Hashiguchi Y, Kawabata M, Tanaka I, Okazawa T, Flores O, Recinos M M

出版信息

Trans R Soc Trop Med Hyg. 1981;75(6):839-45. doi: 10.1016/0035-9203(81)90427-2.

Abstract

The density of Onchocerca volvulus microfilariae in the skin of 11 carriers was examined by carrying out a monthly examination in a single endemic area of Guatemalan onchocerciasis. The results obtained suggested the possibility of a seasonal variation in the microfilarial skin density. Almost all of the volunteers participating had shown a peak concentration of microfilariae in September, followed by August or October. The highest biting densities of Simulium ochraceum, the principal vector of onchocerciasis in Guatemala, occurred from September to the following January. It thus appears that the seasonal variation in the microfilarial density may correspond, to some extent, with the biting activity of the vector, S. ochraceum and/or with climatic changes in the area.

摘要

通过对危地马拉盘尾丝虫病单一流行地区的11名携带者每月进行一次检查，检测其皮肤中盘尾丝虫微丝蚴的密度。所得结果表明微丝蚴皮肤密度可能存在季节性变化。几乎所有参与的志愿者在9月都出现了微丝蚴浓度峰值，其次是8月或10月。危地马拉盘尾丝虫病的主要传播媒介——赭色蚋的最高叮咬密度出现在9月至次年1月。因此，微丝蚴密度的季节性变化似乎在一定程度上可能与传播媒介赭色蚋的叮咬活动和/或该地区的气候变化相对应。