剛看到一篇，說H7N9不會讓禽類致病，豬很有可能是中間宿主

也就是說，攜帶H7N9的禽類，看上去很健康沒有生病，對大範圍傳播提供了方便。但如何會讓人感染的，很可能有哺乳動物作為中間宿主，豬是一個重點懷疑對象。

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

引用幾段：

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壯年比較令人擔心 -dudaan- ♂ (0 bytes) () 04/04/2013 postreply 05:58:43

• 現在發現的都是重病患者，不知道是不是還有很多沒有去醫院的。 -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

• 目前傳染途徑還不清楚，隻能先按一般流感預防了 -viewfinder- ♀ (328 bytes) () 04/04/2013 postreply 06:52:17

• 我就猜黃浦江那些死豬跟這個有關。 -wells1999- ♀ (0 bytes) () 04/04/2013 postreply 07:39:28

• 時間地點對的上，但政府先前說是正常死亡。應該到源頭繼續仔細調查。 -viewfinder- ♀ (0 bytes) () 04/04/2013 postreply 11:25:11

• 俺要防備的事情太多了，癌症，H7N9。每天就繼續喝黃芪湯吧。去人多的地方戴口罩 -禦用文人- ♀ (129 bytes) () 04/04/2013 postreply 08:36:25

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

• 打電話給西安天一廠家購買的黃芪多糖“樣品”500克，200RMB -禦用文人- ♀ (238 bytes) () 04/04/2013 postreply 10:13:10

• 能不能多給些關於黃芪多糖的信息？比如是合成藥嗎？還是一種保健品？ -綠芽- ♀ (0 bytes) () 04/04/2013 postreply 10:30:19

• 從現代藥理學角度研究黃芪，發現黃芪主要是兩類成分：一是黃芪多糖，另一是黃芪甲苷。。。 -禦用文人- ♀ (415 bytes) () 04/04/2013 postreply 12:38:30

• 前麵甘肅公布的給老年體虛者的預防方子就有一味黃芪， -viewfinder- ♀ (41 bytes) () 04/04/2013 postreply 11:30:33

• 我覺得這才是麻煩的地方，屬於隱蔽性傳染 -華山97- ♂ (212 bytes) () 04/04/2013 postreply 10:40:37

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