CNN news:美国德州爆发西尼罗河病毒

You might wonder what $100 million apartment looks like, you are going to know before the end of today show. I'm Carl Azuz, this is CNN STUDENT NEWS.

你可能很想知道1亿美元的公寓到底是怎样的,我们将会在今天节目结束之前为你揭晓答案。我是卡尔•阿祖兹,这里是CNN学生新闻。

First up, the mayor of Dallas, Texas says his city is facing an emergency. The problem is West Nile Virus. There is an outbreak of it happening around the U.S. It's the biggest jump in the number of reported cases of West Nile since 2004, and the outbreak is spreading. This map shows some of the states that have been hit the hardest. By far, Texas has had it the worst: More than 380 confirmed cases of West Nile there. Officials are trying to fight the outbreak by using a spray to kill infected mosquitoes. The insects spread the disease after they get it from birds. West Nile started in Africa.No one knows how it got to the U.S., but we do know when it arrived: 1999. Most people who get West Nile don't get seriously sick. Dr. Sanjay Gupta runs through some of the symptoms of this disease.

首先, 德克萨斯州达拉斯的市长称他的城市正面临紧急情况。问题是西尼罗河病毒。该病毒在美国突然爆发。这是自2004年以来西尼罗河报告的病例数出现且疫情蔓延最多的情况。这张地图显示了遭受了重大打击的一些州。到目前为止,德克萨斯州的情况最为糟糕: 已经有超过380例西尼罗河病毒确诊病例。官员们试图通过使用喷雾杀死被感染的蚊子来对抗病毒。这些昆虫在与鸟类接触后传播疾病。西尼罗河病毒始于非洲。没有人知道它如何到达美国,但是我们确实知道它在1999年曾经在美国大肆传播。身染西尼罗河病毒的大多数人不会患上重病。桑杰•古普塔会告诉你一些这种病的症状。

The vast majority of people who get West Nile won't have hardly any symptoms at all, or so mild that they won't realize that in fact they have West Nile. So when you look at the numbers of cases, keep that in mind, they are probably a lot higher. And people who have the mild illness, you know, it's a fever, they can swollen lymph glands, they sometimes get a characteristic rash that's usually on the chest or the back of the stomach, sort of in a truncal area of the body. That can happen. There is a more severe form, one in 150 cases, they have something known as a neuroinvasive form. That gets into the brain and spinal cord area, and it crosses the blood brain barrier, can cause someone to be lethargic, can cause someone to have neck stiffness, you know, people can also get joint pain and nausea. So, they can be sometimes vague.

身染西尼罗河病毒的绝大多数人几乎没有任何症状,只是感到过于温暖,他们不会认识到,事实上他们已经身患此病。所以当你看这些病例,记住这一点,他们或许都会出现高热情况。而那些有轻微疾病的人,你知道,会出现发烧的情况,也可能出现淋巴腺肿大,有时会伴有皮疹,通常是在胸部或胃的后面。这都有可能发生。还有更为严重的症状,在150例病例中会有一例,这种情况被称为神经感染。进入大脑和脊髓组织,穿过血脑樊篱,可能造成病人毫无生气,会导致病人颈部僵硬,你知道,病人也可能出现关节疼痛和恶心。因此,他们有时会感到很模糊。

Yesterday, we reported on the U.S. Air Force flight test, a hypersonic aircraft was supposed to fly for 300 seconds, at 4600 miles per hour. This animation shows you how it would have worked. Except it didn't. Officials say, a tailfin problem caused the aircraft to fly out of control, so they had to cut the test flight short and destroy the aircraft. They are not sure if they'll try another one.

昨天,我们报道了美国空军的飞行测试,一架超音速飞机本来是要以每小时4600英里的速度飞进300秒。这个动画展现给你它是如何工作。但它却未能完成。官员们称,尾翼的问题造成了飞机失控,所以他们不得不缩短试飞并且摧毁飞机。他们尚不清楚是否会再次尝试。