官方APP下载:英语学习播客(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)
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 - African Sleeping Sickness

作者:Nancy Steinbach 发布日期:8-6-2001

This is the VOA Special English Development Report.

African Sleeping Sickness is once again threatening many countries south of the Sahara Desert.

The disease is caused by the trypanosome parasite. The parasite enters the human body through the bite of the tsetse fly. Doctors say it takes very few parasites to infect a person. If the infection is not treated, a person's defense system cannot destroy the parasite, and the person dies.

Sleeping sickness has been affecting people in Africa for thousands of years. It is found only in African tsetse flies. Researchers do not know why tsetse flies carry the disease in Africa, but not in other parts of the world.

Sleeping sickness has been a major problem in Africa two other times in the past century. The disease was almost destroyed in the Nineteen-Sixties, but has since returned. The World Health Organization says twenty to fifty percent of people suffer the disease in some villages in Angola, Sudan and the Democratic Republic of Congo.

About forty-five-thousand sleeping sickness infections are reported to the W-H-O every year. But officials say as many as four-hundred-thousand people probably suffer from the disease each year.

Medical experts say early treatment can cure African Sleeping Sickness. But it is difficult to tell if a person has the disease. Early signs include high body temperature, muscle pain and a tired feeling. The signs become worse later when the parasite invades the brain. Then the victim acts strangely or sleeps all day.Treating sleeping sickness is costly. The drug used to treat the early signs of the disease is also used to kill a parasite that affects some people with the disease AIDS.

This has increased its price. The drug used in more severe Sleeping Sickness infections is a poison that can kill up to ten percent of the patients who use it. A safer medicine had stopped being produced recently. However, the W-H-O negotiated an agreement with a drug company to provide all the medicines to treat sleeping sickness free of charge.

Sleeping sickness experts say more people in Africa should be examined for the disease. They also say that leaders of affected countries must improve national health care systems to prevent the disease.

This VOA Special English Development Report was written by Nancy Steinbach.

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:苏公网安备 32010202011039号苏ICP备05000269号-1中国工业和信息化部网站备案查询
广播台