Main contagion the source is pig, horse, ox, chicken, duck, mice, mosquito (Lei Wenjun of piebald midge, library carries this virus) , etc.

• 主要的传染源是猪、马、牛、鸡、鸭、老鼠、蚊子（花斑蚊、库雷蚊均带此病毒），等等。