流行特點 benbingdechuanbofangshiweichuizhichuanbo
，jinganranzhu
，butongpinzhongjiqizajiaohoudaijunjuyouyiganxing。qifashengwumingxianjijiexing，chuchanmuzhuduofasheng
，jingchanmuzhujishaofasheng。gaibingchengsanfaxing，meiciliuxingdezhisilvwei10%~30%。康複豬常成為病毒攜帶者，種公豬可被患病母豬感染而成為帶毒豬。

    

　　臨床症狀 renshenmuzhuwurenheyichangbiaoxian，zizhuzaichushengzhichushenghoujixiaoshichuxianzhenchan。yibanqingkuangxia
，yiwozizhuzhongbufenfabingdezhengzhuangjiaoqing，quanbufabingdezhengzhuangjiaozhong。zhenchanchengduoyangxingdewudaodongzuo，bingqieshichixuxingde。zizhuwodishizhenchanjianshao，shuimianshizhenchantingzhi


，danzhanqihouyouzhenchan
，qianzhizhenchanjuliedechangchengquanzuoshi。bingzhuxingdongkunnan
，wufachinai
，shouzaoyin、驚嚇、寒冷
、興奮等刺激時病情加重。病程因豬而異，輕的常於發病後2~8周恢複正常，重的常因震顫劇烈或四肢麻痹、痙攣或吃奶困難而死亡。震顫消失的子豬在應激的條件下仍會發病。患病子豬在出生後1周能活著的一般愈後良好。

    

　　防治措施 benbingshangwuyouxiaoyufangyimiaohetexiaoliaofa。yufangbenbingzhuyaoyikaoyibanxingdeweishengfangyicuoshi，buyaocongyougaibingdezhuchangyinjinmuzhu，zhuyifangzhigezhongyingjixingciji。zizhuchibudaomurushi，yidingyaojinxingrengongfuzhuchinaihuorengongburu，zheyangkeshiduoshuhuanbingzizhuzirankangfuerjianshaosiwang。