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　　US - Research conducted on behalf of the Swine Health Information Centre indicates shedding by infected swine of the agent responsible for Seneca Valley Virus will continue for a considerable period after the infection has cleared up, writes Bruce Cochrane.In response to a spike in Seneca Valley Virus cases in the US this past summer the Swine Health Information Center initiated research to determine distribution of the virus, identify pathogenicity and reasons for transmission, determine probable shedding times and immunity levels and assess the effectiveness of disinfectants.

　　布魯斯·柯克倫(Bruce Cochrane)寫道，據生豬健康信息中央研究統(tǒng)計數據的代表表示，盡管感染已經消除，但是塞內加谷病毒致使生豬流涎癥狀將持續(xù)很長一段時期。為了歸應美國感染塞內加谷病毒案例的飆升，今年夏天生豬健康信息中央開始研究病毒的分布，斷定致病性和感染緣故，約摸的流涎光陰、免疫等級和評估消毒劑的有效性。