Ebola virus

最近新流感的新聞讓民眾人心惶惶。
下面一則BBC的報導則指出以往通常以靈長類動物為目標的伊波拉病毒最近在豬隻身上發現，產生突變，有可能對人類健康帶來威脅。
一起來讀這篇文章，挑戰這篇文意選填吧！

文章來源：http://news.bbc.co.uk/2/hi/health/8143823.stm

A form of Ebola virus has been detected in pigs for the first time, raising concerns it could mutate and pose a new risk to humans.

Ebola-Reston virus (REBOV) has only __(1)__ been seen in monkeys and humans－and has not caused illness.

But researchers are concerned that pigs might provide a __(2)__ point where the virus could mutate into something more __(3)__ for humans.

The new discovery－in the Philippines－is __(4)__ in the journal Science.

However, the researchers, from the US Centers for Disease Control and Prevention, stress that the virus __(5)__ appears to pose no risk to humans.

It has been detected in farm workers who tend the __(6)__ pigs, and they have shown no
__(7)__ of illness.

However, __(8)__ in Science, the researchers said: “REBOV infection in domestic swine raises concern about the potential for emerging disease in humans and a wider __(9)__ of livestock.”
There is concern that its __(10)__ through swine may allow REBOV to diverge and shift its potential for pathogenicity.

REBOV belongs to the family of filoviruses which usually target primates.

(A) signs (B) melting (C) writing (D) infected (E) previously
(F) range (G) passage (H) featured (I) menacing (J) at present

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