CNN news 2014-10-09 加文本

cnn news 2014-10-09

CARL AZUZ, cnn ANCHOR: Hi, I`m Carl Azuz. This is cnn STUDENT NEWS. Thank you for giving us ten minutes to get you updated on current events.

The Centers for Disease Control and Prevention says when Thomas Eric Duncan started his trip from Liberia to the U.S., he showed no signs of having the

deadly Ebola virus. But witnesses in Liberia say he`d had contact with Ebola victims there. And Liberian officials say when Duncan was asked if

he`d had such contact, he said "No." After his arrival in Texas, he became the first person diagnosed in the U.S. with the disease. Those he stayed

with have been quarantined, health officials are reaching out to others Duncan met with. So far no one else has contracted the virus, but there

are a lot of questions.

SANJAY GUPTA, cnn CORRESPONDENT: They can be quite similar, and that can be confusing, and keep in mind people come back with fevers and cough.

There can be all sorts of different things

Here`s the big critical difference with Ebola: a travel history and the history of any particular risks is absolutely crucial. This particular

gentleman that we are talking about in Dallas, for example, went into the hospital on the 26, the first time. Went to the hospital himself or

herself, but was not asked about travel history.

When he got on the plane, he wasn`t sick, when he got off of the plane, he wasn`t sick. Very important, because one thing that we keep hearing over

and over again, I think it is an important point, is that you don`t spread this virus until you`re sick yourself. So the fact that he was - known as

the incubation period. Carrying the virus clearly in his body, but not spreading it.

If someone were to land in the United States and have developed symptoms, they got on the plane totally healthy, got off the plane and now sick, then

that would prompt the medical evaluation of once they got here to the United States. So, the real key to this is trying to detect screen before

people get out in planes from countries where Ebola is known to be, such as these - these three countries in West Africa.

Part of the problem is that, you know, if someone gets sick, during the time that they are sick, but not yet in the hospital, they come in contact

with lots of people. They need to go back and trace those people. It`s called contact tracing. If you miss the contacts and one of those people

gets sick, then you can start to have a whole another group of people who could potentially become infected.

Ebola can`t live outside the body on surfaces. I think that`s part of this question. It can`t do that. If it`s exposed to sunlight obviously, if the

handrails are cleaned or something like that, that would deactivate the virus, but let`s say those things don`t happen. The virus can (ph) live there, even for several days.

While Ebola can live in all sorts of different bodily fluids, it`s less likely to be transmitted through coughs or sneezes, much more likely to be transmitted through blood.