刚看到一篇，说H7N9不会让禽类致病，猪很有可能是中间宿主

也就是说，携带H7N9的禽类，看上去很健康没有生病，对大范围传播提供了方便。但如何会让人感染的，很可能有哺乳动物作为中间宿主，猪是一个重点怀疑对象。

http://news.yahoo.com/bird-flu-101-bad-h7n9-strain-093212234.html

引用几段：

Much still remains unknown about the virus, including how people are getting infected, but scientists say it contains genetic markers that could help it infect humans. It is circulating in poultry stocks, but is considered a "low pathogenic" virus that is not sickening birds. This can allow it to spread in flocks unnoticed, making it much harder to track and also possibly creating more contamination since the birds are surviving and spending more time on farms, in markets and elsewhere.

Although it is not yet clear, the virus appears to have mutated in a way that would make it easier for it to adapt and grow at normal body temperature in mammals. Scientists are working to figure out which species could now be playing host to the virus, and one possibility is pigs.

Swine are important because they share some basic biological similarities with humans, and they can serve as "mixing vessels" if infected with different flu strains at the same time.

"To me, the most important question to find out is: What is the actual host of this virus?" said Richard Webby, director of a WHO flu center at St. Jude Children's Research Hospital in Memphis, Tennessee. "It really looks like there's been some mammalian host involved."

 

所有跟帖： 

• 目前染病者和死亡者包括一些青壮年比较令人担心 -dudaan- ♂ (0 bytes) () 04/04/2013 postreply 05:58:43

• 现在发现的都是重病患者，不知道是不是还有很多没有去医院的。 -viewfinder- ♀ (0 bytes) () 04/04/2013 postreply 06:23:47

• what the precautions should be taken for people who will travel -blackmatter- ♀ (92 bytes) () 04/04/2013 postreply 06:31:52

• 目前传染途径还不清楚，只能先按一般流感预防了 -viewfinder- ♀ (328 bytes) () 04/04/2013 postreply 06:52:17

• 我就猜黄浦江那些死猪跟这个有关。 -wells1999- ♀ (0 bytes) () 04/04/2013 postreply 07:39:28

• 时间地点对的上，但政府先前说是正常死亡。应该到源头继续仔细调查。 -viewfinder- ♀ (0 bytes) () 04/04/2013 postreply 11:25:11

• 俺要防备的事情太多了，癌症，H7N9。每天就继续喝黄芪汤吧。去人多的地方戴口罩 -御用文人- ♀ (129 bytes) () 04/04/2013 postreply 08:36:25

• where did you buy the 黄芪汤? Thanks! -redmay- ♀ (0 bytes) () 04/04/2013 postreply 09:55:00

• 打电话给西安天一厂家购买的黄芪多糖“样品”500克，200RMB -御用文人- ♀ (238 bytes) () 04/04/2013 postreply 10:13:10

• 能不能多给些关于黄芪多糖的信息？比如是合成药吗？还是一种保健品？ -绿芽- ♀ (0 bytes) () 04/04/2013 postreply 10:30:19

• 从现代药理学角度研究黄芪，发现黄芪主要是两类成分：一是黄芪多糖，另一是黄芪甲苷。。。 -御用文人- ♀ (415 bytes) () 04/04/2013 postreply 12:38:30

• 前面甘肃公布的给老年体虚者的预防方子就有一味黄芪， -viewfinder- ♀ (41 bytes) () 04/04/2013 postreply 11:30:33

• 我觉得这才是麻烦的地方，属于隐蔽性传染 -华山97- ♂ (212 bytes) () 04/04/2013 postreply 10:40:37

• 非常有道理。现在就是希望不要人传人。 -viewfinder- ♀ (0 bytes) () 04/04/2013 postreply 11:31:55