目前尚无确定的人间传染病例。
There has been no confirmed case of human to human transmission.
鉴于老人的免疫系统能够从过去的传染病例中识别出猪流感病毒,老人被认为具有较低的感染几率。
It is thought the elderly may have better resistance because their immune systems recognise the virus from past infections.
在有确诊甲型H1N 1流感病毒传染病例的区域,采取综合预防措施,能够降低传染风险。
In areas with confirmed human cases of novel influenza a (H1N1) virus infection, the risk for infection can be reduced through a combination of actions.
应用推荐