官方APP下载:英语全能特训(微信小程序版,支持苹果手机、安卓手机)
创办于2003年
UNSV记不住?那就记中文谐音“忧安思危”吧!
  Slow and Steady Wins the Race!
UNSV英语学习频道 - Slow and steady wins the race!
公众微信服务号
英语全能特训(微信公众服务号)
UNSV英语学习频道淘宝网店
客服短信:18913948480
客服邮箱:web@unsv.com
初级VIP会员
全站英语学习资料下载。
¥98元/12个月

DEVELOPMENT REPORT - Dengue Fever

阅读次数:


VIP会员专享下载:(非VIP会员无权下载!如果想下载,但还不是VIP会员,请点此订购
下载方式:使用鼠标右键(注意是鼠标右键!)点击下面的MP3音频/MP4视频链接,然后选择“另存为…”。
PDF节目文稿 PDF节目文稿  MP3节目录音 MP3节目录音 
文章正文
同步字幕

This is Bill White with the VOA Special English Development Report.

The World Health Organization says dengue (DEN-gay) fever is increasing in parts of Latin America and Southeast Asia. Health officials say the disease continues to be a major public health concern in countries with hot climates. People suffer from the disease in more than one-hundred nations in Africa, the Americas, the eastern Mediterranean, Southeast Asia and the Western Pacific.

Graphic Image
Graphic Image

Mosquito insects spread the dengue virus when they feed on the blood of an infected person. The disease spreads quickly in big cities where living conditions are not clean. Mosquitoes lay their eggs in water storage areas or where bodily waste is collected. The W-H-O says better waste removal and water storage systems could stop mosquitoes from reproducing in those places.

There are four different forms of the dengue virus. Because of this, no drug has been developed to fully prevent the disease. However, researchers believe a medical vaccine may be developed in several years.

The last major increase in dengue fever was reported in nineteen-ninety-eight. The World Health Organization says more than one-million cases were reported that year. Health officials say this was a record number. However, they suspect that more than fifty-million people are infected with the disease around the world each year. The W-H-O estimates that about forty percent of the world's population is at risk of getting dengue fever.

The disease affects babies, children and young adults. A person with dengue fever has a high body temperature and severe pain in the head, muscles and bones. People infected with the disease do not usually die. However, the most serious form of the disease is dengue hemorrhagic fever. It kills about five percent of victims. Most of them are very young. Signs of this form of the disease include bleeding inside the body.

The only method to control or prevent dengue fever is to kill mosquitoes carrying the disease. Most countries already use chemicals to kill mosquitoes. However, health problems develop when countries stop controlling mosquitoes when the number of cases of the disease is low. The W-H-O says the spread of dengue fever could be reduced if mosquito control programs were carried out all the time.

This VOA Special English Development Report was written by Jill Moss. This is Bill White.

网友的学习评论(0条):
版权所有©2003-2019 南京通享科技有限公司,保留所有权利。未经书面许可,严禁转载本站内容,违者追究法律责任。 互联网经营ICP证:苏B2-20120186
网站备案:苏ICP备05000269号-1中国工业和信息化部网站备案查询
广播台