Ordonez J V, Scherer W F, Dickerman R W
Am J Trop Med Hyg. 1976 Jan;25(1):163-72. doi: 10.4269/ajtmh.1976.25.163.
During the wet seasons of 1972 and possibly 1971, sentinel horses became infected by Venezuelan encephalitis (VE) virus in a temporally and geographically progressive manner inland from an enzootic marsh focus of virus on the Pacific couast of southeastern Guatemala. During the wet seasons of 1972 and 1973, VE virus was detected by sentinel horses (and a sentinel hamster in 1972) in a small woods 10 km north of the marsh, but virus was undetectable there during the dry seasons of 1973 and 1974 and the wet season of 1974. Culex (Melanoconion) mosquitoes were found in this woods and at the marsh during August 1973. These observations are compatible with movement of VE virus from the marsh habitat during some wet seasons. However, virus activity in this region adjacent to the marsh was quantitatively unpredictable on a yearly basis and occurred in only very focal habitats during 1971 to 1974. Mechanisms of VE virus movement from the marsh are currently unknown, but bats are under study as a likely possibility.
在1972年的雨季以及可能的1971年雨季期间，在危地马拉东南部太平洋沿岸的一个病毒地方性流行的沼泽疫源地向内陆方向，哨兵马以时间和地理上渐进的方式感染了委内瑞拉脑炎（VE）病毒。在1972年和1973年的雨季，在沼泽以北10公里处的一片小森林中，哨兵马（以及1972年的一只哨兵仓鼠）检测到了VE病毒，但在1973年和1974年的旱季以及1974年的雨季，在那里未检测到病毒。1973年8月，在这片森林和沼泽中发现了库蚊（黑须库蚊属）。这些观察结果与VE病毒在某些雨季从沼泽栖息地传播的情况相符。然而，在1971年至1974年期间，这片毗邻沼泽的区域内病毒活动在数量上每年都无法预测，且仅在非常局部的栖息地出现。目前尚不清楚VE病毒从沼泽传播的机制，但蝙蝠作为一种可能的传播途径正在研究中。
